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

X
- Definition No authoritative reference available. + References No definition available. + Details
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Namespace Prefix: | bkyi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition No authoritative reference available. + References No definition available. + Details
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Namespace Prefix: | bkyi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
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Namespace Prefix: | bkyi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
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Namespace Prefix: | bkyi_
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Balance Type: | na
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