CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
Issuance of common stock to non-employee directors (in shares)	5,260	5,366	5,556
Dividends paid (in dollars per share)	$ 0.72	$ 0.72	$ 0.72