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Note H - Related Party (Details) (USD $)	24 Months Ended
	Dec. 31, 2011	Dec. 31, 2013
Monthly Payment to Mr. Colatosti [Member]
Note H - Related Party (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	$ 5,000us-gaap_RelatedPartyTransactionAmountsOfTransaction / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bkyi_MonthlyPaymentToMrColatostiMember
Chief Financial Officer [Member]
Note H - Related Party (Details) [Line Items]
Accounts Payable, Related Parties		$ 50,000us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefFinancialOfficerMember

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