XML 51 R40.htm IDEA: XBRL DOCUMENT v3.25.2

Note 10 - Debt (Details Textual) - USD ($) $ in Thousands	Oct. 30, 2024	Jun. 30, 2025	Mar. 31, 2025
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Fifth Third Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Expiration Period (Year)	1 year
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,000
Line of Credit Facility, Maximum Borrowing Capacity, Accordion Feature	4,000
Line of Credit Facility, Maximum Borrowing Capacity, Including Accordion Feature, Total	$ 10,000
Debt Instrument, Basis Spread on Variable Rate	2.50%
Debt Instrument, Borrowing Base, Percentage of Eligible Commercial Accounts Receivable	80.00%
Debt Instrument, Borrowing Base, Percentage of Federal Government Accounts Receivable	50.00%
Debt Instrument, Borrowing Base, Percentage of Eligible Finished Goods Inventory	50.00%
Short-Term Debt		$ 0	$ 0
Debt Instrument, Covenant, Total Funded Debt Ratio	2
Debt Instrument, Covenant, Fixed Charge Ratio	1.2

X

- Definition

Amount to calculate borrowing base under debt instrument as percentage of eligible commercial accounts receivable.

+ References

No definition available.

+ Details

Name:	bkti_DebtInstrumentBorrowingBasePercentageOfEligibleCommercialAccountsReceivable
Namespace Prefix:	bkti_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount to calculate borrowing base under debt instrument as percentage of eligible finished goods inventory.

+ References

No definition available.

+ Details

Name:	bkti_DebtInstrumentBorrowingBasePercentageOfEligibleFinishedGoodsInventory
Namespace Prefix:	bkti_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of calculate borrowing base under debt instrument as percentage of federal government accounts receivable.

+ References

No definition available.

+ Details

Name:	bkti_DebtInstrumentBorrowingBasePercentageOfFederalGovernmentAccountsReceivable
Namespace Prefix:	bkti_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Information pertaining to the debt covenant.

+ References

No definition available.

+ Details

Name:	bkti_DebtInstrumentCovenantFixedChargeRatio
Namespace Prefix:	bkti_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Information pertaining to the debt covenant.

+ References

No definition available.

+ Details

Name:	bkti_DebtInstrumentCovenantTotalFundedDebtRatio
Namespace Prefix:	bkti_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Expansion on the maximum amount allowed on a line of credit.

+ References

No definition available.

+ Details

Name:	bkti_LineOfCreditFacilityMaximumBorrowingCapacityAccordionFeature
Namespace Prefix:	bkti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	bkti_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeatureTotal
Namespace Prefix:	bkti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Indicates type of variable interest rate on debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=bkti_FifthThirdCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: