Subsequent Events (Details) (USD $)
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12 Months Ended |
0 Months Ended |
3 Months Ended |
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Dec. 31, 2013
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Dec. 31, 2012
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Mar. 13, 2015
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Mar. 16, 2015
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Mar. 16, 2015
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Dec. 31, 2014
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Sep. 30, 2013
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Apr. 30, 2013
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Feb. 28, 2013
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Mar. 12, 2015
employee
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Subsequent Event [Line Items] |
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Preferred stock authorized |
5,000,000us-gaap_PreferredStockSharesAuthorized
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5,000,000us-gaap_PreferredStockSharesAuthorized
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Purchase price per share |
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
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$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
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Common stock value |
$ 135,919us-gaap_CommonStockValue
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$ 150,200us-gaap_CommonStockValue
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Price per share |
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$ 2.84us-gaap_SharesIssuedPricePerShare
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$ 2.43us-gaap_SharesIssuedPricePerShare
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$ 3.10us-gaap_SharesIssuedPricePerShare
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Platinum Credit Facility [Member] |
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Subsequent Event [Line Items] |
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Proceeds from lines of credit |
4,000,000us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember
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4,000,000us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember
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Subsequent Event [Member] |
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Subsequent Event [Line Items] |
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Number of member states |
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28us-gaap_NumberOfStatesInWhichEntityOperates / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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28us-gaap_NumberOfStatesInWhichEntityOperates / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Proceeds from issuance of convertible preferred stock and warrants |
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500,000navb_ProceedsfromIssuanceofConvertiblePreferredStockandWarrants / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Percentage of preferred stock and warrants committed to be purchased by Dr. Goldberg |
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40.00%navb_ConvertiblePreferredStockPercentofSharesReserved / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Common stock as percentage of common equity |
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1.00%navb_CommonStockasPercentageofCommonEquity / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Proceeds from issuance initial public offering |
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50,000,000us-gaap_ProceedsFromIssuanceInitialPublicOffering / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Common stock value |
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50,000us-gaap_CommonStockValue / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Weighted average price per share |
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80.00%navb_WeightedAveragePriceCommonStockPercentage / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Price per share |
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$ 3.00us-gaap_SharesIssuedPricePerShare / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Convertible preferred stock value per share |
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$ 58,320navb_ConvertiblePreferredStockNonredeemableorRedeemableIssuerOptionValuePerShare / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Subsequent Event [Member] | Staff Member [Member] |
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Subsequent Event [Line Items] |
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Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date |
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7us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_TitleOfIndividualAxis = navb_StaffMemberMember
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Subsequent Event [Member] | Executive Officer [Member] |
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Subsequent Event [Line Items] |
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Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date |
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3us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_TitleOfIndividualAxis = us-gaap_ExecutiveOfficerMember
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Subsequent Event [Member] | Licensing Agreements [Member] |
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Subsequent Event [Line Items] |
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Payment for sublicense agreement |
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2,000,000us-gaap_LicensesRevenue / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_LicensingAgreementsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Additional payments for sublicense agreement |
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5,000,000navb_LicensesRevenueAdditional / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_LicensingAgreementsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Subsequent Event [Member] | Platinum Credit Facility [Member] |
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Subsequent Event [Line Items] |
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Proceeds from lines of credit |
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$ 3,000,000us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_LineOfCreditMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Subsequent Event [Member] | MT Preferred Stock [Member] |
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Subsequent Event [Line Items] |
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Preferred stock authorized |
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50us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = navb_MTSeriesAConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Purchase price per share |
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$ 50,000us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = navb_MTSeriesAConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Preferred stock issued |
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10us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = navb_MTSeriesAConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Subsequent Event [Member] | Common Stock [Member] |
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Subsequent Event [Line Items] |
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Shares authorized upon exercise of warrants |
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1,500navb_CommonStockSharesAuthorizedUponExerciseofWarrants / us-gaap_StatementClassOfStockAxis = navb_MTCommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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Common Stock, Shares Issuable Upon Exercise of Warrants |
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300navb_CommonStockSharesIssuableUponExerciseofWarrants / us-gaap_StatementClassOfStockAxis = navb_MTCommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
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