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Consolidated Statements of Changes in Stockholders' Equity (USD $) | Convertible Preferred STock | Common Stock | Additional Paid-In Capital | Accumulated Other Comprehensive Loss | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | ---
Beginning balance, amount at Mar. 31, 2012 |  | $ 0 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 134,499,000 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (3,053,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ (132,314,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (868,000)us-gaap_StockholdersEquity
Beginning balance, shares at Mar. 31, 2012 |  | 4,144,206 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock offering, net of commissions, expenses and other offering costs, shares |  | 1,569,286 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock offering, net of commissions, expenses and other offering costs, amount |  | 1,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 4,941,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 4,942,000 us-gaap_StockIssuedDuringPeriodValueNewIssues
Issuance of convertible preferred stock offering, net of commissions, expenses and other offering costs, shares | 1,000 ocls_IssuanceOfConvertiblePreferredStockOfferingNetOfCommissionsExpensesAndOtherOfferingCostsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |  |  |  |  |
Issuance of convertible preferred stock offering, net of commissions, expenses and other offering costs, amount |  |  | 907,000 ocls_IssuanceOfConvertiblePreferredStockOfferingNetOfCommissionsExpensesAndOtherOfferingCostsAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 907,000 ocls_IssuanceOfConvertiblePreferredStockOfferingNetOfCommissionsExpensesAndOtherOfferingCostsAmount
Fair value of common stock purchase warrants issued with a cash settlement provision |  |  | (2,347,000)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (2,347,000)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Conversion of convertible preferred stock into common stock, shares | (1,000)us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember | 158,730 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock in conenction with exercise of stock options, shares |  | 9,878 ocls_IssuanceOfCommonStockInConenctionWithExerciseOfStockOptionsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock in conenction with exercise of stock options, amount |  |  | 28,000 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 28,000 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
Issuance of common stock for services, shares |  | 71,534 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock for services, amount |  |  | 443,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 443,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices
Issuance of common stock to settle obligations, shares |  | 12,232 us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock to settle obligations, amount |  |  | 51,000 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 51,000 us-gaap_StockIssuedDuringPeriodValueOther
Fair value of common stock issued in connection with stock purchase agreement, shares |  | 617,284 ocls_FairValueOfCommonStockIssuedInConnectionWithStockPurchaseAgreementShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Fair value of common stock issued in connection with stock purchase agreement, amount |  |  | 3,500,000 ocls_FairValueOfCommonStockIssuedInConnectionWithStockPurchaseAgreementAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 3,500,000 ocls_FairValueOfCommonStockIssuedInConnectionWithStockPurchaseAgreementAmount
Reclassification of liability to equity related to the modification of common stock purchase warrants with a cash settlement provision |  |  | 1,636,000 ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 1,636,000 ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision
Common stock purchase warrants issued to consultants |  |  | 4,000 ocls_CommonStockPurchaseWarrantsIssuedToConsultants / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 4,000 ocls_CommonStockPurchaseWarrantsIssuedToConsultants
Employee stock-based compensation expense, net of forfeitures |  |  | 1,154,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 1,154,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Foreign currency translation adjustment |  |  |  | 62,000 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |  | 62,000 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
Net income (loss) |  |  |  |  | (5,431,000)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (5,431,000)us-gaap_NetIncomeLoss
Ending balance, amount at Mar. 31, 2013 | 0 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember | 1,000 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 144,816,000 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (2,991,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (137,745,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 4,081,000 us-gaap_StockholdersEquity
Ending balance, shares at Mar. 31, 2013 | 0 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember | 6,583,150 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock offering, net of commissions, expenses and other offering costs, shares |  | 1,000,620 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock offering, net of commissions, expenses and other offering costs, amount |  |  | 3,188,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 3,188,000 us-gaap_StockIssuedDuringPeriodValueNewIssues
Fair value of common stock purchase warrants issued with a cash settlement provision |  |  | (3,292,000)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (3,292,000)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Issuance of common stock for services, shares |  | 105,981 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock for services, amount |  |  | 341,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 341,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices
Reclassification of liability to equity related to the modification of common stock purchase warrants with a cash settlement provision |  |  | 1,683,000 ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 1,683,000 ocls_ReclassificationOfLiabilityToEquityRelatedToModificationOfCommonStockPurchaseWarrantsWithCashSettlementProvision
Issuance of common stock in connection with the exercise of common stock purchase warrants, shares |  | 449,620 ocls_IssuanceOfCommonStockInConnectionWithExerciseOfCommonStockPurchaseWarrantsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common stock in connection with the exercise of common stock purchase warrants, amount |  |  | 1,295,000 ocls_IssuanceOfCommonStockInConnectionWithExerciseOfCommonStockPurchaseWarrantsAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 1,295,000 ocls_IssuanceOfCommonStockInConnectionWithExerciseOfCommonStockPurchaseWarrantsAmount
Issuance of common stock in conenction with the cashless exercise of common stock purchase warrants, shares |  | 20,774 ocls_IssuanceOfCommonStockInConenctionWithCashlessExerciseOfCommonStockPurchaseWarrantsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Common stock purchase warrants issued to consultants |  |  | 3,000 ocls_CommonStockPurchaseWarrantsIssuedToConsultants / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 3,000 ocls_CommonStockPurchaseWarrantsIssuedToConsultants
Employee stock-based compensation expense, net of forfeitures |  |  | 1,107,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 1,107,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Foreign currency translation adjustment |  |  |  | (78,000)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |  | (78,000)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
Net income (loss) |  |  |  |  | 3,735,000 us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 3,735,000 us-gaap_NetIncomeLoss
Ending balance, amount at Mar. 31, 2014 | $ 0 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember | $ 1,000 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 149,141,000 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (3,069,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ (134,010,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ 12,063,000 us-gaap_StockholdersEquity
Ending balance, shares at Mar. 31, 2014 | 0 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember | 8,160,145 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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