Schedule II - Condensed Statement of Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Interest and dividends	$ 9,055	$ 4,704
Unrealized Gain (Loss) on Investments	(12,183)	(20,961)
Gain on disposals of property	204	58
Other	991	1,141
Total Revenues	224,750	283,392
Personnel expenses	76,706	85,331
Office and technology expenses	17,359	17,323
Other expenses	16,319	24,809
Operating Expenses	198,520	253,284
Income before Income Taxes	26,230	30,108
Provision (Benefit) for Income Taxes	4,544	6,205
Net Income	$ 21,686	$ 23,903
Basic Earnings per Common Share	$ 11.45	$ 12.60
Weighted Average Shares Outstanding – Basic	1,893	1,897
Diluted Earnings per Common Share	$ 11.45	$ 12.59
Weighted Average Shares Outstanding – Diluted	1,893	1,898
Parent Company
Condensed Financial Statements, Captions [Line Items]
Interest and dividends	$ 3,671	$ 990
Net realized investment gains (losses)	(142)	(739)
Rental income	922	869
Gain on disposals of property	194	0
Other	(36)	305
Total Revenues	4,609	1,425
Personnel expenses	874	947
Office and technology expenses	628	447
Other expenses	979	936
Operating Expenses	2,481	2,330
Equity in Net Income of Affiliated Companies	19,670	24,584
Income before Income Taxes	21,798	23,679
Provision (Benefit) for Income Taxes	112	(224)
Net Income	$ 21,686	$ 23,903
Basic Earnings per Common Share	$ 11.45	$ 12.60
Weighted Average Shares Outstanding – Basic	1,893	1,897
Diluted Earnings per Common Share	$ 11.45	$ 12.59
Weighted Average Shares Outstanding – Diluted	1,893	1,898