Consolidated Statements of Changes In Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common Dividends (in dollars per share)	$ 0.96	$ 0.88	$ 0.80
Preferred Dividends (in dollars per share)	$ 10,625	$ 42,500	$ 42,500