Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities
Net income	$ 34,824	$ 62,215
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	953	754
Net amortization of investments	5,380	7,111
Change in investment related allowance for credit losses	60	(102)
Deferred income taxes	(2,937)	530
Net realized gains on investments	(2,402)	(1,490)
Net unrealized (gains) losses on equity securities	12,984	(8,026)
Net realized gains on disposal of assets	(2)	(21)
Share-based compensation	1,512	1,735
Changes in operating assets and liabilities:
Premiums receivable, net	(1,912)	2,243
Accrued interest receivable	(692)	126
Deferred policy acquisition costs	(1,216)	(770)
Amounts held by others		70
Other assets	(1,470)	(554)
Reserves for loss and loss adjustment expenses	(29,082)	(39,772)
Unearned premiums	7,001	6,753
Reinsurance balances	2,809	(2,591)
Amounts held for others and policyholder deposits	2,236	(3,423)
Federal income taxes payable	4,260	2,268
Accounts payable and other liabilities	3,760	2,368
Net cash provided by operating activities	36,066	29,424
Investing activities
Purchases of investments held-to-maturity	(32,152)	(23,231)
Purchases of investments available-for-sale	(91,276)	(31,915)
Purchases of equity securities	(10,763)	(4,886)
Purchases of short-term investments	(59,155)	(115,812)
Proceeds from maturities of investments held-to-maturity	59,884	63,324
Proceeds from sales and maturities of investments available-for-sale	63,706	97,069
Proceeds from sales of equity securities	7,005
Proceeds from sales and maturities of short-term investments	79,014	65,064
Purchases of property and equipment	(1,872)	(732)
Proceeds from sales of property and equipment		23
Net cash provided by investing activities	14,391	48,904
Financing activities
Finance lease purchases	(35)	(32)
Purchase of treasury stock	(12,236)
Dividends to shareholders	(17,956)	(16,925)
Net cash used in financing activities	(30,227)	(16,957)
Change in cash and cash equivalents	20,230	61,371
Cash and cash equivalents at beginning of period	70,722	61,757
Cash and cash equivalents at end of period	$ 90,952	$ 123,128