Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Investments:
Fixed maturity securities—held-to-maturity, at amortized cost net of allowance for credit losses of $157 and $274 in 2021 and 2020, respectively, (fair value $589,601 and $621,654 in 2021 and 2020, respectively)	$ 558,431	$ 585,130
Fixed maturity securities—available-for-sale, at fair value (amortized cost $348,567, allowance for credit losses of $0 in 2021 and amortized cost $387,665, allowance for credit losses of $0 in 2020)	369,890	414,279
Equity securities, at fair value (cost $38,928 and $35,787 in 2021 and 2020, respectively)	55,375	43,437
Short-term investments	129,109	45,898
Total investments	1,112,805	1,088,744
Cash and cash equivalents	57,541	61,757
Amounts recoverable from reinsurers (net of allowance for credit losses of $449 and $452 in 2021 and 2020, respectively)	110,912	105,803
Premiums receivable (net of allowance for credit losses of $4,655 and $4,791 in 2021 and 2020, respectively)	165,158	156,760
Deferred income taxes	14,219	13,665
Accrued interest receivable	9,355	9,274
Property and equipment, net	6,259	6,182
Deferred policy acquisition costs	18,857	17,810
Other assets	11,157	10,860
Total assets	1,506,263	1,470,855
Liabilities:
Reserves for loss and loss adjustment expenses	744,969	760,561
Unearned premiums	138,861	129,260
Amounts held for others	46,883	43,402
Policyholder deposits	40,426	41,524
Insurance-related assessments	18,688	17,995
Federal income tax payable	2,244	417
Accounts payable and other liabilities	40,833	38,880
Payable for investments purchased	4,993
Total liabilities	1,037,897	1,032,039
Shareholders’ equity:
Common stock: voting—$0.01 par value authorized shares—50,000,000 in 2021 and 2020; 20,622,304 and 20,589,309 shares issued; and 19,364,054 and 19,331,059 shares outstanding in 2021 and 2020, respectively	206	206
Additional paid-in capital	217,165	215,316
Treasury stock, at cost (1,258,250 shares in 2021 and 2020)	(22,370)	(22,370)
Accumulated earnings	256,503	224,645
Accumulated other comprehensive income, net	16,862	21,019
Total shareholders’ equity	468,366	438,816
Total liabilities and shareholders’ equity	$ 1,506,263	$ 1,470,855