Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Employee stock purchase plan (in shares)	345	412	1,115	1,029
Dividend reinvestment plan (in shares)	6,746	6,733	21,447	19,403
Cash dividends per common share (in dollars per share)	$ 0.34	$ 0.32	$ 1	$ 0.94
Stock grants to directors for retainer fees (in shares)			10,455	10,837
Stock option exercises (in shares)				1,355