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v2.4.1.9

Consolidated Statements of Stockholders' Equity (Deficit) (USD $) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | ---
Balance at Dec. 31, 2012 | $ 3,907 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 51,066,532 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (52,288,421)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (1,217,982)us-gaap_StockholdersEquity
Shares (in Shares) at Dec. 31, 2012 | 39,077,807 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Derivative liabilities associated with security purchase agreements |  | (346,214)bkyi_AdjustmentsToAdditionalPaidInCapitalDerivativeLiabilitiesAssociatedWithSecurityPurchaseAgreements / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | (346,214)bkyi_AdjustmentsToAdditionalPaidInCapitalDerivativeLiabilitiesAssociatedWithSecurityPurchaseAgreements
Stock issuance costs |  | (648,116)us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | (648,116)us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts
Share-based compensation |  | 81,642 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 81,642 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Reclassification of derivative liability |  | 113,962 us-gaap_AdjustmentsToAdditionalPaidInCapitalOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 113,962 us-gaap_AdjustmentsToAdditionalPaidInCapitalOther
Net loss |  |  | (2,582,151)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (2,582,151)us-gaap_NetIncomeLoss
Issuance of common stock and warrants pursuant to security purchase agreements | 1,859 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 5,647,935 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 5,649,794 us-gaap_StockIssuedDuringPeriodValueNewIssues
Issuance of common stock and warrants pursuant to security purchase agreements (in Shares) | 18,587,139 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Issuance of common stock pursuant to anti-dilution rights | 21 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (21)us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of common stock pursuant to anti-dilution rights (in Shares) | 206,033 us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Issuance of common stock in exchange for options exercised | 5 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (5)us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of common stock in exchange for options exercised (in Shares) | 50,279 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  | 89,999 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Balance at Dec. 31, 2013 | 5,792 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 55,915,715 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (54,870,572)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 1,050,935 us-gaap_StockholdersEquity
Shares (in Shares) at Dec. 31, 2013 | 57,921,258 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Stock issuance costs |  | (103,157)us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | (103,157)us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts
Share-based compensation |  | 207,258 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 207,258 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Reclassification of derivative liability |  | 42,597 us-gaap_AdjustmentsToAdditionalPaidInCapitalOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 42,597 us-gaap_AdjustmentsToAdditionalPaidInCapitalOther
Net loss |  |  | (1,883,572)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (1,883,572)us-gaap_NetIncomeLoss
Issuance of common stock and warrants pursuant to security purchase agreements | 797 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 1,594,203 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | 1,595,000 us-gaap_StockIssuedDuringPeriodValueNewIssues
Issuance of common stock and warrants pursuant to security purchase agreements (in Shares) | 7,974,999 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Issuance of common stock in exchange for cashless exercise of warrants | 8 bkyi_IssuanceOfCommonStockInExchangeForWarrantsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (8)bkyi_IssuanceOfCommonStockInExchangeForWarrantsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of common stock in exchange for cashless exercise of warrants (in Shares) | 76,830 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Issuance of common stock in exchange for options exercised | 3 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (3)us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of common stock in exchange for options exercised (in Shares) | 28,173 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  | 54,166 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Repurchase of warrants |  | (150,000)bkyi_WarrantRepurchasedDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | (150,000)bkyi_WarrantRepurchasedDuringPeriodValue
Balance at Dec. 31, 2014 | $ 6,600 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 57,506,605 us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (56,754,144)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ 759,061 us-gaap_StockholdersEquity
Shares (in Shares) at Dec. 31, 2014 | 66,001,260 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |

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