Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities
Net income	$ 17,331	$ 19,312
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	294	270
Net amortization of investments	2,068	2,179
Change in investment related allowance for credit losses	95	(108)
Deferred income taxes	364	500
Net realized gains on investments	(738)	(319)
Net unrealized gains on equity securities	(1,040)	(5,511)
Net realized gains on disposal of assets		(23)
Share-based compensation	(9)	571
Changes in operating assets and liabilities:
Premiums receivable, net	(5,501)	(8,410)
Accrued interest receivable	(869)	(395)
Deferred policy acquisition costs	(818)	(874)
Other assets	(4,714)	(266)
Reserves for loss and loss adjustment expenses	(16,720)	(803)
Unearned premiums	7,676	8,251
Reinsurance balances	4,281	(4,914)
Amounts held for others and policyholder deposits	420	1,069
Federal income taxes payable	3,441	3,555
Accounts payable and other liabilities	1,557	2,509
Net cash provided by operating activities	7,118	16,593
Investing activities
Purchases of investments held-to-maturity	(13,665)	(5,281)
Purchases of investments available-for-sale	(30,076)	(22,118)
Purchases of equity securities	(4,975)	(1,895)
Purchases of short-term investments	(24,133)	(42,286)
Proceeds from maturities of investments held-to-maturity	12,723	13,814
Proceeds from sales and maturities of investments available-for-sale	11,638	17,947
Proceeds from sales of equity securities	1,483
Proceeds from sales and maturities of short-term investments	8,218	585
Purchases of property and equipment	(258)	(390)
Proceeds from sales of property and equipment		23
Net cash used in investing activities	(39,045)	(39,601)
Financing activities
Finance lease purchases	(12)	(9)
Purchase of treasury stock	(2,059)
Dividends to shareholders	(5,983)	(5,666)
Net cash used in financing activities	(8,054)	(5,675)
Change in cash and cash equivalents	(39,981)	(28,683)
Cash and cash equivalents at beginning of period	70,722	61,757
Cash and cash equivalents at end of period	$ 30,741	$ 33,074