Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Fixed maturity securities, held-to-maturity, allowance for credit losses	$ 165	$ 182
Fixed maturity securities, fair value	461,681	473,092
Fixed maturity securities, available-for-sale, allowance for credit losses	0	0
Fixed maturity securities, amortized cost	301,691	326,171
Equity securities, cost	44,045	44,046
Amounts recoverable from reinsurers, allowance for credit losses	309	360
Premiums receivable, allowance for credit losses	$ 4,535	$ 4,674
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	20,704,448	20,704,448
Common stock, shares outstanding	19,135,008	19,135,008
Treasury stock, shares	1,569,440	1,569,440