XML 70 R59.htm IDEA: XBRL DOCUMENT
v3.20.2

Note 14 - Convertible Notes Payable (Details Textual) - USD ($) |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 23, 2020 | Jul. 10, 2020 | Jun. 29, 2020 | Jun. 12, 2020 | Jun. 10, 2020 | May 06, 2020 | Mar. 12, 2020 | Feb. 13, 2020 | Jan. 13, 2020 | Jul. 10, 2019 | Jul. 31, 2020 | Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Mar. 30, 2020 | Feb. 14, 2020 | Nov. 11, 2015
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.50 | $ 0.65 | $ 3.60
Payments of Stock Issuance Costs, Commitment Fees |  |  |  |  |  |  |  |  |  | $ 50,000 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Due Diligence Fee (in shares) |  |  | 136,575 |  |  | 114,943 |  |  |  | 266,667 |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Due Diligence Fee |  |  | $ 100,000 |  |  | $ 133,333 |  |  |  | $ 400,000 |  |  |  |  |  |  |
Payments of Stock Issuance Costs, Banker Fees |  |  |  |  |  |  |  |  |  | 193,500 |  |  |  |  |  |  |
Payments of Stock Issuance Costs, Legal Fees |  |  |  |  |  |  |  |  |  | 71,330 |  |  |  |  |  |  |
Class of Warrant or Right, Recorded as Debt Discount |  |  |  |  |  |  |  |  |  | $ 595,662 |  |  |  |  |  |  |
Share Price (in dollars per share) |  |  |  | $ 0.65 |  |  | $ 0.76 |  |  |  |  |  |  |  |  |  |
Repayments of Convertible Debt | $ 4,200,000 |  |  |  |  |  |  |  |  |  |  |  | $ 4,509,250 | $ 707,000 |  |  |
Stock Returned During the Period, Shares, Commitment Fee (in shares) |  |  |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) |  |  | $ 0.7322 |  |  | $ 1.16 |  |  |  |  |  |  |  |  |  |  |
Conversion of Senior Secured Convertible Note to Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  | $ 3,789,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  |  |  |  | 5,829,225 |  |  |  |  |  |  |  |  |  |  |  |
Investor Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) |  |  | 5 years |  |  | 5 years |  |  |  | 5 years |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  | 1,425,000 |  |  | 1,900,000 |  |  |  | 2,000,000 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  | $ 1.16 |  |  | $ 1.16 |  |  |  | $ 1.50 |  |  |  |  |  |  |
Repayments of Convertible Debt |  |  |  |  |  |  |  |  |  |  |  | $ 2,415,000 |  |  |  |  |
Warrants and Rights Outstanding |  |  | $ 511,402 |  |  | $ 876,937 |  |  |  |  |  |  |  |  |  |  |
Payments of Debt Issuance Costs |  |  |  |  |  |  |  |  |  |  |  | 1,218,163 |  |  |  |  |
The Note [Member] | Senior Secured Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 3,060,000 |  |  |  |  |  |  |
Proceeds from Debt, Net of Issuance Costs |  |  |  |  |  |  |  |  |  | 2,550,000 |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount, Total |  |  |  |  |  |  |  |  |  | 510,000 |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal due in 180 Days |  |  |  |  |  |  |  |  |  | 918,000 |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal due in 270 Days |  |  |  |  |  |  |  |  |  | $ 1,071,000 |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |
Amended Note [Member] | Senior Secured Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 3,789,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount, Total |  |  |  |  |  |  | $ 641,215 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  |  |  |  | $ 0.65 |  |  |  |  |  |  |  |  | $ 0.65 |
Interest Expense, Debt, Total |  |  |  |  |  |  | $ 729,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Beneficial Conversion Feature, Per Share (in dollars per share) |  |  |  |  |  |  | $ 0.11 |  |  |  |  |  |  |  |  |  |
Long-term Debt, Total |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |
January 2020 Note [Member] | Secured Redeemable Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 157,000 |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Commitment Fees (in shares) |  |  |  |  |  |  |  |  | 650,000 |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  |  |  |  |  |  |  |  | $ 75,000 |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Shares to be Paid, Commitment Fee, Repaid Prior to Maturity (in shares) |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Legal Fees |  |  |  |  |  |  |  |  | $ 7,000 |  |  |  |  |  |  |  |
Repayments of Convertible Debt |  |  |  | $ 211,984 |  |  |  |  |  |  |  |  |  |  |  |  |
January 2020 Note [Member] | Secured Redeemable Convertible Note [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Premium Payment Percentage |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |
January 2020 Note [Member] | Secured Redeemable Convertible Note [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Premium Payment Percentage |  |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |
February 2020 Note [Member] | Secured Redeemable Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 126,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  |  |  |  | $ 0.65 | $ 1.15 |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Commitment Fees (in shares) |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  |  |  |  |  |  |  | $ 57,500 |  |  |  |  |  |  |  |  |
Legal Fees |  |  |  |  |  |  |  | $ 6,000 |  |  |  |  |  |  |  |  |
Repayments of Convertible Debt |  | $ 170,442 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Deemed Dividend Expense |  |  |  |  |  |  | $ 70,998 |  |  |  |  |  |  |  |  |  |
February 2020 Note [Member] | Secured Redeemable Convertible Note [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Premium Payment Percentage |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |
February 2020 Note [Member] | Secured Redeemable Convertible Note [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Premium Payment Percentage |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |
May 2020 Note [Member] | Secured Redeemable Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | 2,415,000 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Debt, Net of Issuance Costs |  |  |  |  |  | $ 2,100,000 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  |  |  | $ 1.16 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  |  | $ 268,333 |  |  |  |  |  |  |  |  |  |  |
Placement Fee, Percent of Aggregate Gross Proceeds |  |  |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
June 2020 Note [Member] | Secured Redeemable Convertible Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | 1,811,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Debt, Net of Issuance Costs |  |  | $ 1,575,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  | $ 1.16 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Convertible Debt |  |  |  |  |  |  |  |  |  |  |  | $ 1,811,250 |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  | $ 201,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Placement Fee, Percent of Aggregate Gross Proceeds |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Debt Issuance Costs and Discounts, Total |  |  |  |  |  |  |  |  |  |  | $ 957,919 |  |  |  |  |  |

X
- Definition Represents the amount of warrant or right recorded as a debt discount to be amortized over the life of the related debt. + References No definition available. + Details
Name: | bkyi_ClassOfWarrantOrRightRecordedAsDebtDiscount
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount per share of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date. + References No definition available. + Details
Name: | bkyi_DebtInstrumentConvertibleBeneficialConversionFeaturePerShare
Namespace Prefix: | bkyi_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage premium on principal of convertible debt instrument paid at time of redemption. + References No definition available. + Details
Name: | bkyi_DebtInstrumentConvertiblePremiumPaymentPercentage
Namespace Prefix: | bkyi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares to be paid in lieu of commitment fee on debt instrument if repaid prior to maturity date. + References No definition available. + Details
Name: | bkyi_DebtInstrumentCovenantSharesToBePaidCommitmentFeeRepaidPriorToMaturity
Namespace Prefix: | bkyi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of deemed dividend expense of debt instrument. + References No definition available. + Details
Name: | bkyi_DebtInstrumentDeemedDividendExpense
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the required periodic payments applied to principal due in 180 days. + References No definition available. + Details
Name: | bkyi_DebtInstrumentPeriodicPaymentPrincipalDueIn180Days
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the required periodic payments applied to principal due in 270 days. + References No definition available. + Details
Name: | bkyi_DebtInstrumentPeriodicPaymentPrincipalDueIn270Days
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow for banker fee cost incurred directly with the issuance of an equity security. + References No definition available. + Details
Name: | bkyi_PaymentsOfStockIssuanceCostsBankerFees
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for commitment fee cost incurred directly with the issuance of an equity security. + References No definition available. + Details
Name: | bkyi_PaymentsOfStockIssuanceCostsCommitmentFees
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for legal fee cost incurred directly with the issuance of an equity security. + References No definition available. + Details
Name: | bkyi_PaymentsOfStockIssuanceCostsLegalFees
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the placement fee as a percentage of gross proceeds. + References No definition available. + Details
Name: | bkyi_PlacementFeePercentOfAggregateGrossProceeds
Namespace Prefix: | bkyi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period for commitment fees. + References No definition available. + Details
Name: | bkyi_StockIssuedDuringPeriodSharesCommitmentFees
Namespace Prefix: | bkyi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued for due diligence fee. + References No definition available. + Details
Name: | bkyi_StockIssuedDuringPeriodSharesIssuedForDueDiligenceFee
Namespace Prefix: | bkyi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of stock issued for due diligence fee. + References No definition available. + Details
Name: | bkyi_StockIssuedDuringPeriodValueIssuedForDueDiligenceFee
Namespace Prefix: | bkyi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of shares returned to the Company during the period that were originally issued for commitment fees. + References No definition available. + Details
Name: | bkyi_StockReturnedDuringThePeriodSharesCommitmentFee
Namespace Prefix: | bkyi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 + Details
Name: | us-gaap_AmortizationOfFinancingCostsAndDiscounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
Name: | us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentFeeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentPeriodicPaymentPrincipal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after accumulated amortization, of debt discount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_InterestExpenseDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_LegalFees
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDebtIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtConversionByUniqueDescriptionAxis=bkyi_ConversionOfSeniorSecuredConvertibleNoteToCommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=bkyi_InvestorWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_TheNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=bkyi_SeniorSecuredConvertibleNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_AmendedNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_January2020NoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=bkyi_SecuredRedeemableConvertibleNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_February2020NoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_May2020NoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=bkyi_June2020NoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |