Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Fixed maturity securities, held-to-maturity, allowance for credit losses	$ 188	$ 239
Fixed maturity securities-held-to-maturity	452,019	468,144
Fixed maturity securities, available-for-sale, allowance for credit losses	0	0
Fixed maturity securities, amortized cost	331,798	338,593
Equity securities, cost	46,944	50,185
Amounts recoverable from reinsurers, allowance for credit losses	343	372
Premiums receivable, allowance for credit losses	$ 4,643	$ 4,852
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	20,707,148	20,678,572
Common stock, shares outstanding	19,184,449	19,155,873
Treasury stock, shares	1,522,699	1,522,699