Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net income	$ 31,458	$ 21,859	$ 25,701
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,759	1,657	1,435
Amortization of investments, net	712	748	788
Amortization of other intangible assets, net	505	577	917
Amortization related to postretirement benefits obligation	0	0	9
Share-based compensation expense related to stock appreciation rights	264	327	219
Net (gain) loss on disposals of property	(46)	12	(23)
Net realized (gain) loss on securities	(1,343)	117	(1,201)
Net realized loss (gain) on other investments	3	(7)	(22)
Net realized loss on impairments of other assets and other investments	0	0	182
Changes in the estimated fair value of equity security investments	(10,303)	4,130	0
Net earnings from other investments	(2,209)	(1,913)	(1,673)
Provision (benefit) for claims	3,532	(332)	3,311
Provision (benefit) for deferred income taxes	2,278	(4,074)	(4,664)
Changes in assets and liabilities:
Increase in receivables	(395)	(2,097)	(1,505)
Decrease in other assets	1,654	540	388
Increase in operating lease right-of-use assets	(4,469)	0	0
Decrease (increase) in current income taxes receivable	0	385	(385)
Increase in operating lease liabilities	4,502	0	0
Increase in accounts payable and accrued liabilities	583	216	1,463
Increase (decrease) in current income taxes payable	(3,641)	4,981	(1,232)
Payments of claims, net of recoveries	(3,928)	(2,740)	(3,815)
Net cash provided by (used in) operating activities	20,916	24,386	19,893
Investing Activities
Purchases of fixed maturity securities	(26,431)	0	(18,420)
Purchases of equity securities	(6,374)	(13,954)	(4,646)
Purchases of short-term investments	(98,476)	(94,781)	(26,414)
Purchases of other investments	(2,536)	(1,544)	(1,873)
Proceeds from sales and maturities of fixed maturity securities	12,530	11,520	17,445
Proceeds from the sale of equity securities	5,402	8,585	4,682
Proceeds from sales and maturities of short-term investments	118,364	86,105	9,228
Proceeds from sales and distributions of other investments	3,192	3,055	2,696
Proceeds from sales of other assets	3	7	22
Purchase of subsidiary, net of cash received	0	0	(175)
Purchases of property, equipment and software	(1,486)	(1,859)	(2,884)
Proceeds from disposals of property	301	59	51
Net cash provided by (used in) investing activities	4,489	(2,807)	(20,288)
Financing Activities
Repurchases of common stock	(19)	(29)	(246)
Exercise of stock appreciation rights	0	(1)	0
Distribution of equity for noncontrolling interest	0	(52)	0
Dividends paid	(18,131)	(23,017)	(7,073)
Net cash provided by (used in) financing activities	(18,150)	(23,099)	(7,319)
Net Increase (Decrease) in Cash and Cash Equivalents	7,255	(1,520)	(7,714)
Cash and Cash Equivalents, Beginning of Period	18,694	20,214	27,928
Cash and Cash Equivalents, End of Period	25,949	18,694	20,214
Cash Paid During the Year for:
Income tax payments, net	9,734	5,462	11,539
Non cash net unrealized (gain) loss on investments, net of deferred tax (provision) benefit of $(576), $377 and $(2,145) for December 31, 2019, 2018 and 2017, respectively	(2,151)	1,406	(4,132)
Adjustments to postretirement benefits obligation, net of deferred tax provision of $0, $(9) and $(24) for December 31, 2019, 2018 and 2017, respectively	0	(37)	(46)
Changes in Financial Statement Amounts Related to Purchase of Subsidiaries, Net of Cash Received
Goodwill and other intangibles acquired	0	0	(237)
Accounts payable and accrued liabilities assumed	0	0	62
Purchase of subsidiary, net of cash received	$ 0	$ 0	$ (175)