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Note 9 - Prepaid Expenses and Other - Prepaid Expenses (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Deposit for inventory	$ 1,423,445	$ 66,995
Other prepaid expenses	109,371	64,178
Insurance	46,935	45,468
Software licenses	26,410	24,866
Total prepayments	$ 1,606,161	$ 201,507

X

- Definition

Represents prepaid deposit for inventory.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of asset related to consideration paid in advance for software license that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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Namespace Prefix:	bkyi_
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Period Type:	instant

X

- Definition

Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
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X

- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

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X

- Definition

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320

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