Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments:
Fixed maturity securities—held-to-maturity, at amortized cost net of allowance for credit losses of $290 and $195 in 2022 and 2021, respectively, (fair value $545,425 and $575,850 in 2022 and 2021, respectively)	$ 545,372	$ 549,231
Fixed maturity securities—available-for-sale, at fair value (amortized cost $342,784, allowance for credit losses of $0 in 2022 and amortized cost $324,597, allowance for credit losses of $0 in 2021)	342,972	341,769
Equity securities, at fair value (cost $48,151 and $44,175 in 2022 and 2021, respectively)	69,156	64,140
Short-term investments	72,820	57,431
Total investments	1,030,320	1,012,571
Cash and cash equivalents	30,741	70,722
Amounts recoverable from reinsurers (net of allowance for credit losses of $388 and $440 in 2022 and 2021, respectively)	116,233	120,561
Premiums receivable (net of allowance for credit losses of $4,530 and $4,386 in 2022 and 2021, respectively)	140,601	135,100
Deferred income taxes	17,602	14,384
Accrued interest receivable	8,949	8,080
Property and equipment, net	6,423	6,459
Deferred policy acquisition costs	17,877	17,059
Federal income tax recoverable	2,973	6,414
Other assets	19,662	11,374
Total assets	1,391,381	1,402,724
Liabilities:
Reserves for loss and loss adjustment expenses	728,558	745,278
Unearned premiums	128,768	121,092
Amounts held for others	44,200	42,915
Policyholder deposits	38,518	39,383
Insurance-related assessments	17,622	16,850
Accounts payable and other liabilities	38,442	37,883
Total liabilities	996,108	1,003,401
Shareholders’ equity:
Common stock: voting—$0.01 par value authorized shares—50,000,000 in 2022 and 2021; 20,622,565 and 20,622,304 shares issued; and 19,320,422 and 19,364,054 shares outstanding in 2022 and 2021, respectively	206	206
Additional paid-in capital	217,605	217,458
Treasury stock, at cost (1,302,143 and 1,258,250 shares in 2022 and 2021, respectively)	(24,429)	(22,370)
Accumulated earnings	201,834	190,492
Accumulated other comprehensive income, net	57	13,537
Total shareholders’ equity	395,273	399,323
Total liabilities and shareholders’ equity	$ 1,391,381	$ 1,402,724