OPTN


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues

us-gaap:OperatingExpenses

us-gaap:OperatingCostsAndExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestExpense
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebt

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:BalanceSheetLocation
us-gaap:IncomeStatementLocation
us-gaap:PlanName

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:AwardType, us-gaap:PlanName

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

optn:DeferredOfferingCostsWIthinAccountsPayableandAccruedExpenses

optn:IncreaseDecreaseInGrantsandOtherReceivables

optn:IncreaseDecreaseinDepositsandOtherAssets

optn:ProceedsfromIssuanceofCommonStockUnderEmployeeStockPurchasePlan

optn:RecognitionofInitialLeaseLiabilities

us-gaap:AmortizationOfFinancingCostsAndDiscounts
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedContributionPlanCostRecognized

us-gaap:Depreciation
us-gaap:BalanceSheetLocation

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:InvestmentIncomeInterest

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:PaymentsOfFinancingCosts

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate
us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

optn:AccruedProductAllowancesCurrent

optn:AccruedResearchandDevelopmentCurrent

optn:AccruedSellingGeneralandAdministrativeCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
optn:DebtInstrumentFeeAmountFrontEnd

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent

us-gaap:AccruedBonusesCurrent

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
us-gaap:ClassOfWarrantOrRight
us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DeferredFinanceCostsGross
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:InventoryRawMaterials

us-gaap:InventoryWorkInProcess

us-gaap:OtherLiabilities
us-gaap:BalanceSheetLocation
us-gaap:RestrictedCash
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:UnamortizedDebtIssuanceExpense

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue ███▇▇▇▇▇▇▇▇▁0.0460.0460.0460.0410.0410.0410.0410.0410.0410.0380.0380.004NANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock███▇▇▇▇▇▇▇▇▁45.99227345.90616245.90616241.4883741.43091841.26442241.2275341.2275341.12155737.90905837.8025564.067717NANA
us-gaap:CommonStockSharesIssued ███▇▇▇▇▇▇▇▇▁45.99227345.90616245.90616241.4883741.43091841.2275341.2275341.1215341.12155737.90905837.8025564.067717NANA
us-gaap:CommonStockSharesAuthorized ▄▄▄▄▄▄▄▄▄▄▄200.0200.0200.0200.0200.0200.0200.0200.0200.0200.0200.0NANANA
us-gaap:CommonStockSharesOutstanding ███▇▇▇▇▇▇▇▇▁45.99227345.90616245.90616241.4883741.43091841.2275337.80255641.1215341.12155737.90905837.8025564.067717NANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted █▁45.90810445.906162NA41.45418141.31060841.25605NA41.20716738.68836637.849199NANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA12.382114NANANA9.690359NANANA8.199942NA31.542178NA14.919786
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockNA0.0439NANANA0.046161NANANA0.033181NANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOptionNA8.37304NANANA7.777367NANANA6.309453NA4.583133NA4.400858
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:RestrictedStockUnitsRSUNA1.287986NANANA0.0NANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:WarrantNA2.677188NANANA1.866831NANANA1.890489NA1.890489NA1.890489
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇▅▇█▅▄▃▂▂▁▁▁▁▁10.2727.06211.08112.3976.6774.4763.0231.9021.2740.8650.00.00.00.0
us-gaap:Revenues ▇▅▇█▅▄▃▂▂▁▁▁▁▁10.2727.06211.08112.3976.6774.4763.0231.9021.2740.8650.00.00.00.0
us-gaap:OperatingExpenses ▁█32.87133.348NA32.20632.38431.6427.02425.07523.90629.71219.69613.1948.3377.303
us-gaap:OperatingCostsAndExpenses █▁1.71.356NANA1.0890.738NANANANANANANANA
us-gaap:ResearchAndDevelopmentExpense ▆▆▆▇▆▅▄▃▂▂▁█▇▃5.4744.9325.3795.5475.2954.5623.3632.9892.0461.7011.2126.6415.9063.073
us-gaap:SellingGeneralAndAdministrativeExpense ▇██▇▇█▇▆▆█▅▂▁▁25.69727.0626.54525.2726.026.3423.66122.08621.8628.01118.4846.5532.4314.23
us-gaap:OperatingIncomeLoss ▃▂▃▄▂▂▂▃▃▁▄▆██-22.599-26.286-22.921-19.809-25.707-27.164-24.719-23.492-22.983-29.047-19.696-13.194-8.337-7.303
us-gaap:InterestExpense █▇▆▆▆▆▆▆▆▆▁▁▁▃3.2932.8632.4752.3722.3892.3882.3742.3612.3012.1930.0480.00.00.862
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType optn:NotePurchaseAgreement,us-gaap:SeniorNotes█▅▃▂▂▂▂▂▂▁3.2932.8632.4752.3722.3892.3882.3742.3612.3012.193NANANANA
us-gaap:AllocatedShareBasedCompensationExpense ▇▆▆▆▇▆▅▅▅▅█▂▁▂2.7722.462.3082.4352.6972.4222.2182.2022.12.0233.2960.7710.3070.722
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▄▁█▃▂▄▇▆▆▅▄▄▄▄-0.005-0.0250.031-0.012-0.0130.0030.020.0130.0150.007-0.002-0.004-0.005-0.001
us-gaap:NetIncomeLoss ▂▂▃▂▂▂▂▃▃▁▄▆██-25.852-28.856-24.995-28.808-27.377-28.874-26.381-25.123-24.581-30.572-19.551-13.068-8.208-8.075
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▁-25.852-28.856NA-28.808-27.377-28.874NA-25.123-24.581-30.572-19.551NANANA
us-gaap:ComprehensiveIncomeNetOfTax ▂▂▃▂▂▂▂▃▃▁▄▆██-25.857-28.881-24.964-28.82-27.39-28.871-26.361-25.11-24.566-30.565-19.553-13.072-8.213-8.076
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets ▄▅▅▄▅▆▇▇█▇▇▁153.048174.17172.65149.377166.572192.992216.989237.622259.95220.562241.13655.135NANA
us-gaap:Liabilities ██▆▆▆▆▆▆▆▆▅▁140.439139.039111.067104.85998.1100.63998.37894.89295.61894.45186.649.699NANA
us-gaap:LiabilitiesAndStockholdersEquity ▄▅▅▄▅▆▇▇█▇▇▁153.048174.17172.65149.377166.572192.992216.989237.622259.95220.562241.13655.135NANA
us-gaap:StockholdersEquity ▅▅▆▆▆▇▇██▇█▁12.60935.13161.58344.51868.47292.353118.611142.73164.332126.111154.496-191.106NANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AssetsCurrent ▄▅▅▄▅▆▇▇█▇▇▁148.905169.677168.06144.102160.854186.782212.857233.455256.054217.069238.16750.32NANA
us-gaap:AccountsReceivableNetCurrent █▇█▆▆▄▂▂▃▂▁14.09611.73313.64310.7469.3115.7932.312.9233.6712.0490.0NANANA
us-gaap:InventoryNet ▇▇▄▅▅▇██▆▄▃▁6.1255.7093.4844.4044.265.7167.1327.0094.953.582.0130.241NANA
us-gaap:InventoryFinishedGoods ▇█▅▆▄▆█▇▃▃▁2.5842.8011.5811.8851.0822.1312.8192.4960.9080.8390.0NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇██▆▆█▄▃▄▁▁3.4183.763.7893.233.033.8332.1831.852.2321.3981.254NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:PropertyPlantAndEquipmentGross ███▇▇▇▇▇▆▄▃▁5.5565.4585.2995.265.2555.1485.0354.8884.2893.6072.9191.899NANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▆▆▅▄▃▃▂▁▁▁2.7662.4782.2471.9991.7241.4331.1510.9310.6930.5050.3550.466NANA
us-gaap:PropertyPlantAndEquipmentNet ▅▅▅▆▇▇██▇▆▄▁2.792.983.0523.2613.5313.7153.8843.9573.5963.1022.5641.433NANA
us-gaap:OtherAssetsNoncurrent ▅▅▅▇▇█▁▁▁▂▂▄1.3531.5131.5382.0142.1872.4950.2480.210.30.3910.4051.097NANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:LiabilitiesCurrent █▇█▆▅▆▅▄▅▄▂▁34.89834.22536.13929.96224.36726.86825.69722.36223.21322.48814.7779.699NANA
us-gaap:AccountsPayableCurrent ▂▄▂▄▁█▇▆▇█▅▂3.5055.4033.6255.1122.8117.6767.1166.5496.9517.9965.8933.876NANA
us-gaap:OtherAccruedLiabilitiesCurrent ▆█▇▆▁▃▂▄▃▁▁▁1.5051.961.7881.4150.370.7770.4350.9120.790.2980.3140.369NANA
us-gaap:AccruedLiabilitiesCurrent █▇█▆▅▄▄▄▄▃▂▁30.13727.47631.37923.4620.10817.68218.42115.64516.25414.4928.6985.606NANA
us-gaap:OperatingLeaseLiabilityCurrent ▇▇▆▇██▁1.2561.3461.1351.391.4481.510.0NANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▇▇▆▇██▁1.2561.3461.1351.391.4481.510.0NANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:LongTermDebt ██▂▂▁▁▁▁▁▁▁104.947104.65674.53174.26672.86972.6872.572.31872.13871.96371.863NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ▅▅▆▆▆▇▇██▇█▁12.60935.13161.58344.51868.47292.353118.611142.73164.332126.111154.496-191.106NANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▅▅▆▆▆▇▇██▇█▁12.60935.13161.58344.51868.47292.353118.611142.732164.333126.111154.496-191.106NANA
us-gaap:CommonStockValue ███▇▇▇▇▇▇▇▇▁0.0460.0460.0460.0410.0410.0410.0410.0410.0410.0380.0380.004NANA
us-gaap:AdditionalPaidInCapitalCommonStock ███▇▇▇▇▇▇▆▆▁495.329491.994489.565447.541442.676439.167436.554434.312430.803368.018365.8380.0NANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▂▂▃▄▄▅▆▆▇██-482.688-456.836-427.98-402.985-374.178-346.801-317.927-291.546-266.423-241.841-211.269-191.001NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▅█▅▆▇▇▅▃▂▁▁-0.078-0.073-0.048-0.079-0.067-0.054-0.057-0.077-0.089-0.104-0.111-0.109NANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁2.7482.429NA2.4692.7162.425NA2.2092.1352.053.296NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂▄▅▂▁▄▃▃▃▆▇██-23.55-27.968-18.106-15.127-27.888-29.694-20.194-24.13-24.495-22.998-13.779-8.238-6.104-7.53
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇███▇▇▇▅▅▆▁▅▅█-0.239-0.07-0.072-0.062-0.255-0.168-0.24-0.569-0.499-0.382-1.196-0.499-0.621-0.09
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▂▁▁▁▁▁▃▁█▁▁▂0.57229.37839.831-3.2830.7930.188-0.0831.18560.17-1.693200.412-0.7211.61934.815
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▂▄▇▂▁▁▂▂█▁-23.2211.33521.661-18.474-27.353-29.68-20.494-23.49835.202-25.074NA-9.476-5.11227.195
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂▄▅▂▁▄▃▃▃▆▇██-23.55-27.968-18.106-15.127-27.888-29.694-20.194-24.13-24.495-22.998-13.779-8.238-6.104-7.53
us-gaap:NetIncomeLoss ▂▂▃▂▂▂▂▃▃▁▄▆██-25.852-28.856-24.995-28.808-27.377-28.874-26.381-25.123-24.581-30.572-19.551-13.068-8.208-8.075
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▁-25.852-28.856NA-28.808-27.377-28.874NA-25.123-24.581-30.572-19.551NANANA
us-gaap:DepreciationDepletionAndAmortization ▆█▆▇█▇▆▄▁▄▂▂▁▁0.2540.3090.230.2860.3230.2690.2140.1530.0160.1560.060.0380.0340.032
us-gaap:IncreaseDecreaseInAccountsReceivable ▇▁▇▅██▃▂▆▆▃▃▃▃2.363-1.912.8981.4343.5183.483-0.613-0.7481.6222.0490.00.00.00.0
us-gaap:IncreaseDecreaseInInventories ▄█▂▄▁▁▄▇▆▇▇▄▄▄0.3952.225-1.0060.05-1.384-1.4190.0121.9631.181.5431.7720.2410.00.0
us-gaap:IncreaseDecreaseInAccountsPayable ▃▇▃▇▁▅▅▅▄█▆▆▆▃-1.8782.131-1.9282.325-4.8370.5840.605-0.351-0.8063.7230.9661.1090.734-2.417
us-gaap:ShareBasedCompensation ▇▆▆▆▇▆▅▅▅▅█▂▁▂2.7722.462.3082.4352.6952.4222.2182.2022.12.0233.2960.7710.3070.722
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇███▇▇▇▅▅▆▁▅▅█-0.239-0.07-0.072-0.062-0.255-0.168-0.24-0.569-0.499-0.382-1.196-0.499-0.621-0.09
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▁▁▁▂▂▂▄▄▃█▄▄▁0.2390.070.0720.0620.2550.1680.240.5690.4990.3821.1960.4990.6210.09
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▂▂▁▁▁▁▁▃▁█▁▁▂0.57229.37839.831-3.2830.7930.188-0.0831.18560.17-1.693200.412-0.7211.61934.815
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▅▆▁█▄▄▄4.44730.0-76.58877.5960.00.00.0NANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value46000.046000.046000.041000.041000.041000.041000.041000.041000.038000.038000.04000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value45454541414141414137374.0677174.0677174.0496684.049668
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value45454541414141414137374.0677174.067717
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-292017-09-282016-12-31
Value200200200200200200200200200200200501310
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value45454541414137414137374.0677174.067717
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4545414141413837
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-03-312019-03-312018-03-312017-09-302017-03-312016-09-30
Value129.6903598.199942311425
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStock


None
Period End2020-03-312019-03-312018-03-31
Value0.04390.0461610.033181
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.40.50.4

us-gaap:EmployeeStockOption


None
Period End2020-03-312019-03-312018-03-312017-09-302017-03-312016-09-30
Value8.373047.7773676.3094534.5831334.4008583.088292
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount67.680.376.914.529.512.1

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-03-312019-03-31
Value1.2879860.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount10.40.0

us-gaap:Warrant


None
Period End2020-03-312019-03-312018-03-312017-09-302017-03-312016-09-30
Value2.6771881.8668311.8904891.8904891.8904891.890489
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount21.619.323.16.012.77.4

None

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value107.06211126.6774.4763.0231.9021.2740.8650.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of Revenues100.0100.00.0100.0100.0100.00.0100.0100.0100.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:License


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.00.03.730.00.50.070.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.030.10.011.22.30.00.00.0
Percentage of Revenues0.00.00.030.10.011.20.00.00.00.0
Percentage of Revenues us-gaap:License0.00.00.00.00.00.00.00.00.00.0

us-gaap:Product


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value107.062118.6676.6773.9763.0231.9021.2740.865
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.069.9100.088.8100.0100.0100.0100.0
Percentage of Revenues100.0100.00.069.9100.088.80.0100.0100.0100.0
Percentage of Revenues us-gaap:Product0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Revenues

us-gaap:Revenues


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value107.06211126.6774.4763.0231.9021.2740.8650.00.00.00.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

None

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value32333232312725232919138.3377.3034.8825.6294.4587.211
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues320.0472.2259.8485.0706.9893.91318.31876.53434.90.00.00.00.00.00.00.00.0

None

us-gaap:OperatingCostsAndExpenses

us-gaap:OperatingCostsAndExpenses


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value1700000.01356000.01089000.0738000.0
Percentage of OperatingCostsAndExpenses100.0100.0100.0100.0
Percentage of Revenues16.519.216.316.5

None

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value5.4744.9325.3795.5475.2954.5623.3632.9892.0461.7011.2126.6415.9063.0733.073.8683.4124.961
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues53.369.848.544.779.3101.9111.2157.2160.6196.60.00.00.00.00.00.00.00.0

None

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value25272625262623222128186.5532.4314.231.8121.7611.0462.25
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues250.2383.2239.6203.8389.4588.5782.71161.21715.93238.30.00.00.00.00.00.00.00.0

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-22.599-26.286-22.921-19.809-25.707-27.164-24.719-23.492-22.983-29.047-19.696-13.194-8.337-7.303-4.882-5.629-4.45840
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-220.0-372.2-206.8-159.8-385.0-606.9-817.7-1235.1-1804.0-3358.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value3293000.02863000.02475000.02372000.02389000.02388000.02374000.02361000.02301000.02193000.048000.000862000.0885000.0885000.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0
Percentage of Revenues32.140.522.319.135.853.478.5124.1180.6253.50.00.00.00.00.00.0

None

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebt

optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3293000.02863000.02475000.02372000.02389000.02388000.02374000.02361000.02301000.02193000.0
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues32.140.522.319.135.853.478.5124.1180.6253.5
Percentage of Revenues optn:NotePurchaseAgreement us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value2772000.02460000.02308000.02435000.02697000.02422000.02218000.02202000.02100000.02023000.03296000.0771000.0307000.0722000.060000.034000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues27.034.820.819.640.454.173.4115.8164.8233.90.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:BalanceSheetLocation

us-gaap:Inventories


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value14000.038000.088000.040000.019000.03000.016000.032000.024000.0
Percentage of AllocatedShareBasedCompensationExpense0.51.53.81.60.70.10.71.51.2
Percentage of Revenues0.10.50.80.30.30.10.82.52.8
Percentage of Revenues us-gaap:Inventories0.00.00.00.00.00.00.00.00.0

us-gaap:PrepaidExpensesAndOtherCurrentAssets


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1000.0-2000.0-9000.015000.023000.003000.03000.0
Percentage of AllocatedShareBasedCompensationExpense0.0-0.1-0.40.60.90.00.10.1
Percentage of Revenues0.0-0.0-0.10.20.50.00.20.3
Percentage of Revenues us-gaap:PrepaidExpensesAndOtherCurrentAssets0.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value34000.054000.026000.021000.0
Percentage of AllocatedShareBasedCompensationExpense1.22.21.00.9
Percentage of Revenues0.30.80.40.5
Percentage of Revenues us-gaap:CostOfSales0.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value2407000.02149000.01838000.02312000.02387000.02158000.01960000.01870000.01932000.01783000.02927000.0360000.0177000.0344000.021000.09000.0
Percentage of AllocatedShareBasedCompensationExpense86.887.479.694.988.589.188.484.992.088.188.846.757.747.635.026.5
Percentage of Revenues23.430.416.618.635.748.264.898.3151.6206.10.00.00.00.00.00.0
Percentage of Revenues us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value331000.0257000.0445000.090000.0284000.0243000.0255000.0329000.0166000.0239000.0369000.0411000.0130000.0378000.039000.025000.0
Percentage of AllocatedShareBasedCompensationExpense11.910.419.33.710.510.011.514.97.911.811.253.342.352.465.073.5
Percentage of Revenues3.23.64.00.74.35.48.417.313.027.60.00.00.00.00.00.0
Percentage of Revenues us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:PlanName

optn:TwoThousandSeventeenEmployeeStockPurchasePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value137000.0150000.086000.091000.0114000.0114000.083000.084000.0123000.0156000.0
Percentage of AllocatedShareBasedCompensationExpense4.96.13.73.74.24.73.73.85.97.7
Percentage of Revenues1.32.10.80.71.72.52.74.49.718.0
Percentage of Revenues optn:TwoThousandSeventeenEmployeeStockPurchasePlan0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-5000.0-25000.031000.0-12000.0-13000.03000.020000.013000.015000.07000.0-2000.0-4000.0-5000.0-1000.0013000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of Revenues-0.0-0.40.3-0.1-0.20.10.70.71.20.80.00.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-25.852-28.856-24.995-28.808-27.377-28.874-26.381-25.123-24.581-30.572-19.551-13.068-8.208-8.075-5.588-6.106-5.26539
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-251.7-408.6-225.6-232.4-410.0-645.1-872.7-1320.9-1929.4-3534.30.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value-25.852-28.856-28.808-27.377-28.874-25.123-24.581-30.572-19.551
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-251.7-408.6-232.4-410.0-645.1-1320.9-1929.4-3534.30.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-25.857-28.881-24.964-28.82-27.39-28.871-26.361-25.11-24.566-30.565-19.553-13.072-8.213-8.076-5.588-6.093
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-251.7-409.0-225.3-232.5-410.2-645.0-872.0-1320.2-1928.3-3533.50.00.00.00.00.00.0

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1531741721491661922162372592202415541
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1401391111049810098949594869.69924
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets91.879.864.370.258.952.145.339.936.842.835.917.659.1

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1531741721491661922162372592202415541
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value123561446892118142164126154-191.106-151.197
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.220.235.729.841.147.954.760.163.257.264.1-346.6-363.9

None

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1481691681441601862122332562172385040
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets97.397.497.396.596.696.898.198.298.598.498.891.397.9

None

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value141113109.3115.7932.312.9233.6712.0490.0
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets9.26.77.97.25.63.01.11.21.40.90.0

None

us-gaap:InventoryNet

us-gaap:InventoryNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value6125000.05709000.03484000.04404000.04260000.05716000.07132000.07009000.04950000.03580000.02013000.0241000.00
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets4.03.32.02.92.63.03.32.91.91.60.80.40.0

None

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value2584000.02801000.01581000.01885000.01082000.02131000.02819000.02496000.0908000.0839000.000
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets1.71.60.91.30.61.11.31.10.30.40.00.0

None

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3418000.03760000.03789000.03230000.03030000.03833000.02183000.01850000.02232000.01398000.01254000.0
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.22.22.21.82.01.00.80.90.60.5

None

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value5556000.05458000.05299000.05260000.05255000.05148000.05035000.04888000.04289000.03607000.02919000.01899000.0697000.0
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.63.13.13.53.22.72.32.11.61.61.23.41.7

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

optn:ComputerEquipmentandSoftware


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1102000.01089000.01112000.01108000.01063000.0955000.0833000.0848000.0800000.0502000.0307000.0403000.0293000.0
Percentage of PropertyPlantAndEquipmentGross19.820.021.021.120.218.616.517.318.713.910.521.242.0
Percentage of Assets0.70.60.60.70.60.50.40.40.30.20.10.70.7
Percentage of Assets optn:ComputerEquipmentandSoftware0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value357000.0278000.070000.066000.057000.029000.0481000.0383000.0525000.0143000.00
Percentage of PropertyPlantAndEquipmentGross6.45.11.31.31.10.69.67.812.24.00.0
Percentage of Assets0.20.20.00.00.00.00.20.20.20.10.0
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value366000.0366000.0366000.0363000.0389000.0391000.0389000.0370000.0287000.0270000.089000.0120000.0121000.0
Percentage of PropertyPlantAndEquipmentGross6.66.76.96.97.47.67.77.66.77.53.06.317.4
Percentage of Assets0.20.20.20.20.20.20.20.20.10.10.00.20.3
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value609000.0609000.0609000.0609000.0609000.0605000.0609000.0609000.048000.043000.028000.028000.028000.0
Percentage of PropertyPlantAndEquipmentGross11.011.211.511.611.611.812.112.51.11.21.01.54.0
Percentage of Assets0.40.30.40.40.40.30.30.30.00.00.00.10.1
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value3122000.03116000.03142000.03114000.03137000.03168000.02723000.02678000.02629000.02649000.02495000.01348000.0255000.0
Percentage of PropertyPlantAndEquipmentGross56.257.159.359.259.761.554.154.861.373.485.571.036.6
Percentage of Assets2.01.81.82.11.91.61.31.11.01.21.02.40.6
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value2766000.02478000.02247000.01999000.01724000.01433000.01151000.0931000.0693000.0505000.0355000.0466000.0374000.0
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.41.31.31.00.70.50.40.30.20.10.80.9

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value2790000.02980000.03052000.03261000.03531000.03715000.03884000.03957000.03596000.03102000.02564000.01433000.0323000.0
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.71.82.22.11.91.81.71.41.41.12.60.8

None

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1353000.01513000.01538000.02014000.02187000.02495000.0248000.0210000.0300000.0391000.0405000.01097000.0553000.0
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.90.91.31.31.30.10.10.10.20.22.01.3

None

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value34343629242625222322149.6995.91
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.819.720.920.114.613.911.89.48.910.26.117.614.2

None

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value3505000.05403000.03625000.05112000.02811000.07676000.07116000.06549000.06951000.07996000.05893000.03876000.03369000.0
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.33.12.13.41.74.03.32.82.73.62.47.08.1

None

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1505000.01960000.01788000.01415000.0370000.0777000.0435000.0912000.0790000.0298000.0314000.0369000.0125000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.11.00.90.20.40.20.40.30.10.10.70.3

None

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value302731232017181516148.6985.6062.541
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.715.818.215.712.19.28.56.66.36.63.610.26.1

None

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1256000.01346000.01135000.01390000.01448000.01510000.00
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.80.80.70.90.90.80.0

None

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1256000.01346000.01135000.01390000.01448000.01510000.00
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.80.80.70.90.90.80.0

None

us-gaap:LongTermDebt

us-gaap:LongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value104104747472727272727171
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.660.143.249.743.737.733.430.427.832.629.8

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value104104747472727272727171
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.660.143.249.743.737.733.430.427.832.629.8
Percentage of Assets optn:NotePurchaseAgreement us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value123561446892118142164126154-191.106-151.197
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.220.235.729.841.147.954.760.163.257.264.1-346.6-363.9

None

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value123561446892118142164126154-191.106-151.197-161.392-121.592
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.220.235.729.841.147.954.760.163.257.264.1-346.6-363.90.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value-0.078-0.073-0.048-0.079-0.067-0.054-0.057-0.076-0.089-0.104-0.111-0.109-0.099-0.141-0.128
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.6-0.2-0.1-0.2-0.1-0.1-0.0-0.1-0.1-0.1-0.10.10.10.10.1
Percentage of Assets-0.1-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.2-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value4954914894474424394364344303683650.00.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3928.41400.5795.01005.3646.5475.5368.1304.3262.2291.8236.8-0.0-0.0-0.0-0.0
Percentage of Assets323.6282.5283.6299.6265.8227.6201.2182.8165.7166.9151.70.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value0.0460.0460.0460.0410.0410.0410.0410.0410.0410.0380.0380.0040.0040.0040.004
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.10.10.10.10.00.00.00.00.00.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value-482.688-456.836-427.98-402.985-374.178-346.801-317.927-291.545-266.422-241.841-211.269-191.001-151.102-161.255-121.468
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-3828.1-1300.4-695.0-905.2-546.5-375.5-268.0-204.3-162.1-191.8-136.799.999.999.999.9
Percentage of Assets-315.4-262.3-247.9-269.8-224.6-179.7-146.5-122.7-102.5-109.6-87.6-346.4-363.70.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value46000.046000.046000.041000.041000.041000.041000.041000.041000.038000.038000.04000.04000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value4954914894474424394364344303683650.00.0
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets323.6282.5283.6299.6265.8227.6201.2182.8165.7166.9151.70.00.0

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value-482690000.0-456840000.0-427980000.0-402980000.0-374180000.0-346800000.0-317930000.0-291550000.0-266420000.0-241840000.0-211270000.0-191000000.0-151100000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-315.4-262.3-247.9-269.8-224.6-179.7-146.5-122.7-102.5-109.6-87.6-346.4-363.7

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value-78000.0-73000.0-48000.0-79000.0-67000.0-54000.0-57000.0-77000.0-89000.0-104000.0-111000.0-109000.0-99000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.2-0.2

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value2748000.02429000.02469000.02716000.02425000.02209000.02135000.02050000.03296000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value2748000.02429000.02469000.02716000.02425000.02209000.02135000.02050000.03296000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-23.55-27.968-18.106-15.127-27.888-29.694-20.194-24.13-24.495-22.998-13.779-8.238-6.104-7.53-5.936
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-229.3-396.0-163.4-122.0-417.7-663.4-668.0-1268.7-1922.7-2658.70.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-239000.0-70000.0-72000.0-62000.0-255000.0-168000.0-240000.0-569000.0-499000.0-382000.0-1196000.0-499000.0-621000.0-90000.0-172000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-1.0-0.6-0.5-3.8-3.8-7.9-29.9-39.2-44.20.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.5722939-3.2830.7930.188-0.0831.18560-1.693200-0.7211.619340.055
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.6416.0359.5-26.511.94.2-2.762.34722.9-195.70.00.00.00.00.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-23.2211.33521-18.474-27.353-29.68-20.494-23.49835-25.074-9.476-5.11227
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-226.118.9195.5-149.0-409.7-663.1-677.9-1235.42763.1-2898.70.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-23.55-27.968-18.106-15.127-27.888-29.694-20.194-24.13-24.495-22.998-13.779-8.238-6.104-7.53-5.936
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-229.3-396.0-163.4-122.0-417.7-663.4-668.0-1268.7-1922.7-2658.70.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-25.852-28.856-24.995-28.808-27.377-28.874-26.381-25.123-24.581-30.572-19.551-13.068-8.208-8.075-5.588-6.106-5.26539
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-251.7-408.6-225.6-232.4-410.0-645.1-872.7-1320.9-1929.4-3534.30.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value-25.852-28.856-28.808-27.377-28.874-25.123-24.581-30.572-19.551
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-251.7-408.6-232.4-410.0-645.1-1320.9-1929.4-3534.30.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

None

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value254000.0309000.0230000.0286000.0323000.0269000.0214000.0153000.016000.0156000.060000.038000.034000.032000.027000.0
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.363-1.912.8981.4343.5183.483-0.613-0.7481.6222.0490.00.00.00.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

None

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value395000.02225000.0-1006000.050000.0-1384000.0-1419000.012000.01963000.01180000.01543000.01772000.0241000.0000
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

None

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-1878000.02131000.0-1928000.02325000.0-4837000.0584000.0605000.0-351000.0-806000.03723000.0966000.01109000.0734000.0-2417000.0394000.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2772000.02460000.02308000.02435000.02695000.02422000.02218000.02202000.02100000.02023000.03296000.0771000.0307000.0722000.060000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-239000.0-70000.0-72000.0-62000.0-255000.0-168000.0-240000.0-569000.0-499000.0-382000.0-1196000.0-499000.0-621000.0-90000.0-172000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-1.0-0.6-0.5-3.8-3.8-7.9-29.9-39.2-44.20.00.00.00.00.0

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value239000.070000.072000.062000.0255000.0168000.0240000.0569000.0499000.0382000.01196000.0499000.0621000.090000.0172000.0
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.5722939-3.2830.7930.188-0.0831.18560-1.693200-0.7211.619340.055
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.6416.0359.5-26.511.94.2-2.762.34722.9-195.70.00.00.00.00.0

None

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.44730-76.588770.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.00.00.00.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value8385800.08373000.07399200.07748500.07983400.07777400.06182900.06138400.06126600.06309500.04110200.02411400.01894100.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value9.199.229.819.939.949.9310.610.610.59.749.163.73.09
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

optn:RestrictedStockUnitsPerformanceBased


None
Period End2020-06-302020-03-31
Value0572050.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.0

optn:RestrictedStockUnitsServiceBased


None
Period End2020-06-302020-03-31
Value0718150.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0125.5

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-04-30
Value01290200.020600.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0225.50.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType, us-gaap:PlanName

us-gaap:RestrictedStockUnitsRSU, optn:NASDAQInducementGrantException


None
Period End2020-06-302020-03-31
Value060000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.010.5

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value12514814712514317120122124520923449586436
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

optn:DeferredOfferingCostsWIthinAccountsPayableandAccruedExpenses

optn:DeferredOfferingCostsWIthinAccountsPayableandAccruedExpenses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-136000.0218000.0466000.0-18000.0-111000.0146000.0-26000.0-61000.0-70000.0303000.0950000.01504000.0000
Percentage of DeferredOfferingCostsWIthinAccountsPayableandAccruedExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

optn:IncreaseDecreaseInGrantsandOtherReceivables

optn:IncreaseDecreaseInGrantsandOtherReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value00-58000.0-58000.0166000.0-118000.060000.0-29000.0-60000.0225000.0-178000.06000.0-24000.0-141000.0-398000.0
Percentage of IncreaseDecreaseInGrantsandOtherReceivables0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

optn:IncreaseDecreaseinDepositsandOtherAssets

optn:IncreaseDecreaseinDepositsandOtherAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-819000.0-425000.0-195000.01317000.0-2438000.01342000.0382000.0-479000.0741000.0118000.0132000.0-626000.0-301000.0-1592000.02221000.0
Percentage of IncreaseDecreaseinDepositsandOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

optn:ProceedsfromIssuanceofCommonStockUnderEmployeeStockPurchasePlan

optn:ProceedsfromIssuanceofCommonStockUnderEmployeeStockPurchasePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value516000.001792000.00439000.0173000.00739000.0000
Percentage of ProceedsfromIssuanceofCommonStockUnderEmployeeStockPurchasePlan100.00.0100.00.0100.0100.00.0100.00.00.00.0

optn:RecognitionofInitialLeaseLiabilities

optn:RecognitionofInitialLeaseLiabilities


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value337000.0405000.0-1245000.01240000.02961000.0000
Percentage of RecognitionofInitialLeaseLiabilities100.0100.0100.0100.0100.00.00.00.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value302000.0268000.0276000.0148000.0121000.0113000.0113000.0111000.0107000.073000.04000.000194000.0194000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ConcentrationRiskPercentage1

us-gaap:AccountsReceivable, us-gaap:CustomerConcentrationRisk


None
Period End2020-03-312019-03-31
Value0.520.73
Percentage of ConcentrationRiskPercentage1100.0100.0

us-gaap:SalesRevenueNet, us-gaap:CustomerConcentrationRisk


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.480.550.620.670.71
Percentage of ConcentrationRiskPercentage10.0105.80.00.097.3

us-gaap:DefinedContributionPlanCostRecognized us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedContributionPlanCostRecognized

us-gaap:ForeignPlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5000.05000.04000.04000.05000.06000.06000.06000.07000.062000.0-5000.06000.038000.06000.0
Percentage of DefinedContributionPlanCostRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value254000.0308000.0229000.0286000.0322000.0269000.0210000.0153000.016000.0156000.060000.037000.034000.032000.027000.017000.0
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation us-gaap:BalanceSheetLocation

us-gaap:Inventories


None
Period End2020-06-302020-03-31
Value125000.0134000.0
Percentage of Depreciation49.243.5

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.56-0.63-0.57-0.69-0.66-0.7-0.64-0.61-0.64-0.81
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4000.0-5000.08000.0-2000.0-3000.0-6000.023000.016000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value7000.0-39000.01000.0-31000.03000.0-6000.0-35000.08000.0-24000.03000.07000.035000.025000.06000.0-46000.00
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2.791-4.397.6424.0741.049-0.922.879-0.4152.1535.5333.2011.6480.7040.2810.11
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value33000.0332000.0400000.0559000.0716000.0684000.0715000.0680000.0582000.0476000.0147000.061000.060000.035000.034000.038000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value-5000.0-25000.0-12000.0-13000.03000.013000.015000.07000.0-2000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-31
Value-5000.0-25000.0-12000.0-13000.03000.013000.015000.07000.0-2000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.0150.6222.4993.2770.00.00.0830.1154.5261.823120.5030.0930.1850.0
Percentage of PaymentsOfFinancingCosts100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value71000.00496000.0173000.0354000.015000.070000.0561000.0727000.0130000.0134000.0000
Percentage of ProceedsFromStockOptionsExercised100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value337000.0405000.0-1245000.01240000.02484000.0000
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:EmployeeStockOption


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.00030.0075-0.0001-0.0003-0.00060.02570.00030.00020.0010.02590.0005-0.000600.0207
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:PlanName

optn:TwoThousandSeventeenEmployeeStockPurchasePlan


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value00.015700.0251
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate-0.0209.3-0.097.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate

us-gaap:EmployeeStockOption


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0030.683400.0001-0.00120.6714-0.0019-0.0031-0.01290.76210.04610.001300.7393
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate us-gaap:PlanName

optn:TwoThousandSeventeenEmployeeStockPurchasePlan


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value00.795900.822
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate0.0116.5-0.0122.4

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value113070.01146300.018500.057000.0326370.01686800.065700.0166310.0191880.01816900.0189150.0218990.0116000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:AwardType, us-gaap:PlanName

optn:ServiceBasedStockOptions, optn:NASDAQInducementGrantException


None
Period End2020-06-302020-03-31
Value090000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross0.07.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value03.44-0.020.134.677.091.0812.180.51-6.429.81
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeStockOption


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-0.015.65-0.033.064.67-6.482.0217.96-1.24-9.7114.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0164.2150.02353.8100.0-91.4187.0147.5-243.1151.2151.4

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan

us-gaap:CommonStock


None
Period End2020-06-302019-06-302019-03-312018-09-30
Value70305.077909.031892.053137.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-31
Value15806.00103300.057452.088587.05000.026047.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.00.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:CommonStock


None
Period End2020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value15806.057452.088587.05000.045287.0330400.0106500.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan


None
Period End2020-06-302019-06-302019-03-312018-09-30
Value516000.0439000.0173000.0739000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302019-06-302019-03-312018-09-30
Value516000.0439000.0173000.0739000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


None
Period End2020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value71000.0172000.0354000.015000.0561000.0727000.0130000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value71000.0172000.0354000.015000.0561000.0727000.0130000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

optn:AccruedProductAllowancesCurrent

optn:AccruedProductAllowancesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value13120.06.9636.6334.632.8562.4241.6130.4390.0
Percentage of AccruedProductAllowancesCurrent100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0

optn:AccruedResearchandDevelopmentCurrent

optn:AccruedResearchandDevelopmentCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value4468000.04001000.05544000.02600000.01790000.0788000.0933000.0515000.0237000.0308000.080000.0724000.0736000.0
Percentage of AccruedResearchandDevelopmentCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

optn:AccruedSellingGeneralandAdministrativeCurrent

optn:AccruedSellingGeneralandAdministrativeCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value5.4695.6153.3795.8815.1154.5374.8127.2686.954103.4631.8880.29
Percentage of AccruedSellingGeneralandAdministrativeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

optn:DebtInstrumentFeeAmountFrontEnd us-gaap:DebtInstrument, us-gaap:LongtermDebtType

optn:DebtInstrumentFeeAmountFrontEnd

optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value956000.01013000.01030000.01082000.0799000.0837000.0872000.0908000.0943000.0976000.0999000.0
Percentage of DebtInstrumentFeeAmountFrontEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value31283224211918
Percentage of AccountsPayableAndOtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedBonusesCurrent

us-gaap:AccruedBonusesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value5309000.03884000.07810000.06601000.05392000.02583000.03635000.03120000.02574000.01444000.04163000.02625000.01390000.0
Percentage of AccruedBonusesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:CashEquivalentsAtCarryingValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1251481471251431712002212442092344936
Percentage of CashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1

us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1


None
Period End2020-03-31
Value8.16
Percentage of ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1100.0

us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights us-gaap:ClassOfWarrantOrRight

us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights

optn:WarrantsExpiringSeptember122022


None
Period End2020-03-31
Value810360.0
Percentage of ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentCarryingAmount

optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value110110807575
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

optn:NotePurchaseAgreementFirstDelayedDrawNotes, us-gaap:SeniorNotes


None
Period End2020-02-13
Value30
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

optn:NotePurchaseAgreementFirstDelayedDrawNotes, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


None
Period End2020-02-13
Value30
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:StatementScenario, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

srt:ScenarioForecast, optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2021-12-312020-12-31
Value0.040.07
Percentage of DebtInstrumentFaceAmount0.00.0

us-gaap:DeferredFinanceCostsGross us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:DeferredFinanceCostsGross

optn:NotePurchaseAgreementFirstDelayedDrawNotes, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


None
Period End2020-02-13
Value150000.0
Percentage of DeferredFinanceCostsGross100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

optn:RestrictedStockUnitsServiceBased


None
Period End2020-06-302020-03-31
Value3.5023.806
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0

optn:ServiceBasedStockOptions


None
Period End2020-06-302020-03-31
Value1719
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions486.3510.3

us-gaap:InventoryRawMaterials

us-gaap:InventoryRawMaterials


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1796000.01900000.01227000.01438000.01754000.01903000.01969000.01900000.01780000.01627000.01385000.00
Percentage of InventoryRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:InventoryWorkInProcess

us-gaap:InventoryWorkInProcess


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1745000.01008000.0676000.01081000.01424000.01682000.02344000.02613000.02262000.01114000.0628000.00
Percentage of InventoryWorkInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherLiabilities

us-gaap:OtherLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value594000.0158000.0397000.0631000.0864000.01091000.0181000.0212000.0267000.00
Percentage of OtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedCash us-gaap:BalanceSheetLocation

us-gaap:RestrictedCash

us-gaap:PrepaidExpensesAndOtherCurrentAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value13000.025000.021000.015000.015000.020000.0
Percentage of RestrictedCash100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1274400.01288000.00020600.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.00.00.0100.00.0

us-gaap:UnamortizedDebtIssuanceExpense us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:UnamortizedDebtIssuanceExpense

optn:NotePurchaseAgreement, us-gaap:SeniorNotes


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4097000.04331000.04439000.04652000.01742000.01825000.01902000.01979000.02056000.02130000.02139000.0
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
None
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
None
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
None
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:BalanceSheetLocation
(None,)
None
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
None
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
None