Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Purchase of shares of treasury stock (in shares)	489,024	756,817	153,005
Shares of common stock for the exercise of stock options (in shares)	87,378	23,581	116,753
Dividends declared per common share (in dollars per share)	$ 1.48	$ 0.84	$ 0.48