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Note 7 - Factoring - Fees (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Factoring fees	$ 11,821	$ 1,055	$ 51,348	$ 33,302

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