Consolidated Statements of Condition (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Held to maturity securities, fair value	$ 180,050	$ 111,340
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	4,678,186	4,678,186
Common stock, shares outstanding (in shares)	4,678,186	4,678,186