XML 81 R67.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Note 7 - Investments - Gross Realized Gains and Losses on Available-for-sale Investments, Limited Liability Investment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Net realized gains | $ 761 | $ 1,209
Fixed Maturities [Member] |  |
Gross realized gains | 9 | 2
Gross realized losses | (6) | (25)
Realized gains (losses) | 3 | (23)
Limited Liability Investments [Member] |  |
Realized gains (losses) | 238 | 366
Limited Liability Investments, Fair Value [Member] |  |
Realized gains (losses) | 481 | 608
Private Company Investments [Member] |  |
Realized gains (losses) | $ 39 | $ 258

X
- Definition Represents realized investment gains. + References No definition available. + Details
Name: | kfs_RealizedInvestmentGains
Namespace Prefix: | kfs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of realized investment gains and (losses). + References No definition available. + Details
Name: | kfs_RealizedInvestmentGainsAndLosses
Namespace Prefix: | kfs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents realized investment losses. + References No definition available. + Details
Name: | kfs_RealizedInvestmentLosses
Namespace Prefix: | kfs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of realized gain (loss) on investment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 + Details
Name: | us-gaap_RealizedInvestmentGainsLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FixedMaturitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=kfs_LimitedLiabilityInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=kfs_LimitedLiabilityInvestmentsFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=kfs_PrivateCompanyInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |