Annual report pursuant to Section 13 and 15(d)

11. Derivative Liability (Details-Level 3)

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11. Derivative Liability (Details-Level 3) (USD $)
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Beginning balance $ 3,175,000us-gaap_DerivativeFairValueOfDerivativeLiability $ 0us-gaap_DerivativeFairValueOfDerivativeLiability
Fair value of warrants issued 0us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued 3,292,000us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Mark to market net unrealized loss (gain) (3,164,000)us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputUnrealizedGainsLossesIncludedInEarningsNet 1,566,000us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputUnrealizedGainsLossesIncludedInEarningsNet
Reclassification to additional paid in capital 0ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision (1,683,000)ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision
Ending balance $ 11,000us-gaap_DerivativeFairValueOfDerivativeLiability $ 3,175,000us-gaap_DerivativeFairValueOfDerivativeLiability