XML 76 R66.htm IDEA: XBRL DOCUMENT v3.23.1

Note 11 - Debt - Subordinated Borrowings (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Delaware Statutory Trust III [Member]
Principal	$ 15.0	$ 15.0
Delaware Statutory Trust III [Member] | London Interbank Offered Rate [Member]
Interest	4.20%	4.20%
Debt Instrument, Basis Spread on Variable Rate	4.20%	4.20%
Connecticut Statutory Trust I [Member]
Principal		$ 15.0
Connecticut Statutory Trust I [Member] | London Interbank Offered Rate [Member]
Interest		4.00%
Debt Instrument, Basis Spread on Variable Rate		4.00%
Connecticut Statutory Trust II [Member]
Principal		$ 17.5
Connecticut Statutory Trust II [Member] | London Interbank Offered Rate [Member]
Interest		4.10%
Debt Instrument, Basis Spread on Variable Rate		4.10%
Connecticut Statutory Trust III [Member]
Principal		$ 20.0
Connecticut Statutory Trust III [Member] | London Interbank Offered Rate [Member]
Interest		3.95%
Debt Instrument, Basis Spread on Variable Rate		3.95%
Delaware Statutory Trust IV [Member]
Principal		$ 10.0
Delaware Statutory Trust IV [Member] | London Interbank Offered Rate [Member]
Interest		3.85%
Debt Instrument, Basis Spread on Variable Rate		3.85%
Delaware Statutory Trust VI [Member]
Principal		$ 13.0
Delaware Statutory Trust VI [Member] | London Interbank Offered Rate [Member]
Interest		4.00%
Debt Instrument, Basis Spread on Variable Rate		4.00%

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

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482900/835-30-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69C
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482925/835-30-45-2

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482949/835-30-55-8

+ Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_DelawareStatutoryTrustIIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableRateAxis=kfs_LondonInterbankOfferedRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_ConnecticutStatutoryTrustIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_ConnecticutStatutoryTrustIiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_ConnecticutStatutoryTrustIiiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_DelawareStatutoryTrustIvMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=kfs_DelawareStatutoryTrustVIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: