CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Investments:
Fixed maturities, cost	$ 234,993	$ 236,299
Allowance for credit losses	0	0
Equity securities, cost	4,943	4,939
Other invested assets, cost	7,946	7,946
Receivables:
Reinsurance, allowance for expected credit losses	45	51
Insurance premiums and other, allowance for expected credit losses	$ 195	$ 201
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	4,000,000	4,000,000
Preferred stock, shares issued (in shares)	55,000	55,000
Preferred stock, shares outstanding (in shares)	55,000	55,000
Preferred stock, redemption value	$ 5,500	$ 5,500
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	22,400,894	22,400,894
Common stock, shares outstanding (in shares)	20,397,228	20,399,758
Treasury stock, at cost (in shares)	2,003,666	2,001,136