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v3.19.1

Note C - Factoring - Fees (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Factoring fees | $ 186,845 | $ 224,142

X
- Definition The cost of factoring related to accounts receivable. + References No definition available. + Details
Name: | bkyi_FactoringFees
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration