Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Consolidated Balance Sheets
Amortized cost	$ 584,754,000	$ 849,567,000
Fair Value	258,617,000	270,912,000
Allowance for credit losses on investments	$ 213,000	$ 0
Preferred stock, par value	$ 1	$ 1
Preferred Stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	19,734,077	19,991,681
Common stock, shares outstanding	19,734,077	19,991,681