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Note B - Factoring (Details)	12 Months Ended
	Dec. 31, 2011
Note B - Factoring (Details) [Line Items]
Factoring Arrangment, Term	24 months
Percentage of Accounts Receivable Remitted by Factor	75.00%bkyi_PercentageOfAccountsReceivableRemittedByFactor
Minimum [Member]
Note B - Factoring (Details) [Line Items]
Factoring Fees, Percent	2.75%bkyi_FactoringFeesPercent / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum [Member]
Note B - Factoring (Details) [Line Items]
Factoring Fees, Percent	15.00%bkyi_FactoringFeesPercent / us-gaap_RangeAxis = us-gaap_MaximumMember

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

X

- Details

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X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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Namespace Prefix:	bkyi_
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X

- Details

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Balance Type:
Period Type:

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- Details

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