Consolidated Statements of Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2025
Price per share (in dollars per share)	$ 11.75	$ 11.75

Represents the price per share of shares issued during the period.

No definition available.

Name:	kfs_SharesIssuedPricePerShare1
Namespace Prefix:	kfs_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration