Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (924,103)us-gaap_NetIncomeLoss	$ (299,214)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to cash used for operating activities:
Depreciation	10,606us-gaap_Depreciation	10,258us-gaap_Depreciation
Amortization
Intangible assets	3,401us-gaap_AmortizationOfIntangibleAssets	3,401us-gaap_AmortizationOfIntangibleAssets
Share-based compensation	162,219us-gaap_ShareBasedCompensation	85,773us-gaap_ShareBasedCompensation
Loss (gain) on derivative liabilities	(14,659)us-gaap_GainLossOnSaleOfDerivatives	204,948us-gaap_GainLossOnSaleOfDerivatives
Change in assets and liabilities:
Accounts receivable trade	36,034	(1,061,936)
Due to factor, net	192,705bkyi_IncreaseDecreaseInDueToFactor	(8,111)bkyi_IncreaseDecreaseInDueToFactor
Inventory	(193,585)us-gaap_IncreaseDecreaseInInventories	429us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other	127,839	(12,951)
Accounts payable	68,518	(217,070)
Accrued liabilities	(17,201)	(1,874)
Deferred revenue	29,001	19,718
Net cash used for operating activities	(519,225)	(1,276,629)
CASH FLOW FROM INVESTING ACTIVITIES:
Capital expenditures		(3,799)
Net cash used for investing activities		(3,799)
CASH FLOW FROM FINANCING ACTIVITIES:
Repurchase of outstanding warrants		(150,000)us-gaap_PaymentsForRepurchaseOfWarrants
Costs to issue common stock	(20,908)us-gaap_PaymentsOfStockIssuanceCosts
Net cash used for financing activities	(20,908)	(150,000)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(540,133)	(1,430,428)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	843,632	2,023,349
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 303,499	$ 592,921

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