Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt securities, available-for-sale, Amortized cost (in dollars)	$ 389,582	$ 288,175
Equity securities, available for sale, cost (in dollars)	$ 46,125	$ 42,120
Common stock, par value (in dollars per share)	$ 0.18	$ 0.18
Common stock, authorized shares	33,333,333	33,333,333
Common stock, issued shares	20,872,831	20,872,831
Treasury stock, shares	2,682,413	2,700,364
Senior unsecured notes due 2029 [Member]
Unamortized debt issuance cost (in dollars)	$ 721	$ 746
Subordinated Debt [Member]
Unamortized debt issuance cost (in dollars)	$ 730	$ 744