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Stockholders' Equity (Narrative) (Details) (USD $)
 1 Months Ended 12 Months Ended 1 Months Ended
Feb. 23, 2012
Dec. 31, 2014
item
Dec. 31, 2013
Dec. 31, 2012
item
Dec. 31, 2010
Sep. 30, 2006
Jan. 08, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Issuance of stock during period, shares 5,750,000us-gaap_StockIssuedDuringPeriodSharesNewIssues            
Issuance of stock for services, shares 750,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices            
Shares issued, price per share $ 11.00us-gaap_SharesIssuedPricePerShare            
Gross proceeds from IPO $ 58,800,000bcov_ProceedsFromIssuanceInitialPublicOfferingGross            
Offering expenses 4,300,000us-gaap_PaymentsOfStockIssuanceCosts            
Conversion of redeemable convertible preferred stock, shares issued 16,150,505us-gaap_ConversionOfStockSharesIssued1            
Number of shares called by warrants 46,713us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights            
Exercise price of warrants $ 3.21us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1            
Number of stock-based compensation plans   4bcov_NumberOfShareBasedCompensationPlans          
Number of shares reserved for issuance under the equity incentive plan   6,235,730us-gaap_CommonStockCapitalSharesReservedForFutureIssuance          
Number of shares available for issuance   1,215,170us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant          
Number of new employees pursuant to the RSU Plan   61bcov_NumberOfEmployeesGrantedRestrictedStockUnitsInConnectionWithAcquisition   15bcov_NumberOfEmployeesGrantedRestrictedStockUnitsInConnectionWithAcquisition      
Restricted stock units, number of common shares called by RSUs       77,100bcov_RestrictedStockUnitsGrantedToEmployeesThatJoinedCompanyInConnectionWithAcquisition      
Aggregate intrinsic value for options exercised     7,104,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 8,594,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue      
Amount reclassified to APIC upon vesting of shares     8,000us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition 101,000us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition      
Shares issued during period, share-based compensation       15,781us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation      
Change in fair value of warrants         (28,000)us-gaap_FairValueAdjustmentOfWarrants      
Brightcove KK [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Joint venture, additional ownership interest acquired             37.00%bcov_JointVentureAdditionalOwnershipPercentageAcquired
/ bcov_JointVentureAxis
= bcov_BrightcoveKkMember
Warrants [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares exercised during period       18,685us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_WarrantMember		      
2004 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares reserved for issuance under the equity incentive plan   7,397,843us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourPlanMember		          
Shares transferred in share based compensation plan       124,703bcov_ShareBasedCompensationCommonStockSharesTransferred
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourPlanMember		      
2012 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares reserved for issuance under the equity incentive plan       1,700,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= bcov_TwoThousandTwelvePlanMember		      
Number of shares available for issuance   1,215,170us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= bcov_TwoThousandTwelvePlanMember		          
Shares reserved for issuance under the equity incentive plan, annual increase as a percentage of outstanding shares at year end   4.00%bcov_SharesReservedForIssuanceEquityIncentivePlanAnnualIncreasePercentageOfOutstandingSharesYearEnd
/ us-gaap_PlanNameAxis
= bcov_TwoThousandTwelvePlanMember		          
Overhang limit for number of shares reserved for issuance under the equity incentive plan   30.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum
/ us-gaap_PlanNameAxis
= bcov_TwoThousandTwelvePlanMember		          
2014 Stock Inducement Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity incentive plan, shares of common stock authorized   578,350us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourteenPlanMember		          
RSUs [Member] | 2004 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted during the period         156,292us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourPlanMember		    
Amount reclassified to APIC upon vesting of shares     8,000us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourPlanMember		 101,000us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_PlanNameAxis
= bcov_TwoThousandFourPlanMember		      
Minimum [Member] | 2012 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock based compensation, vesting period   3 months          
Maximum [Member] | 2012 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock based compensation, vesting period   4 years          
Series B Redeemable Convertible Preferred Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares called by warrants           46,713us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember		  
Exercise price of warrants           $ 3.21us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember		  
Warrants expiration date           Aug. 31, 2016  
Warrants, fair value $ 395,000us-gaap_WarrantsNotSettleableInCashFairValueDisclosure
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember