Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Condensed Consolidated Balance Sheets
Available-for-sale securities, net of allowance for credit losses	$ 246,017	$ 240,793
Loans, allowance for credit losses	$ 4,250	$ 4,261
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized (in shares)	10,000,000	10,000,000
Common stock, issued (in shares)	6,263,141	6,213,141
Common shares, shares outstanding (in shares)	5,781,030	5,756,852
Stock held by deferred compensation plan (in shares)	194,971	194,971
Treasury stock (in shares)	287,140	261,318