Consolidated Statement of Stockholders' Equity (Parentheticals) - $ / shares	3 Months Ended				12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Common stock dividends, per share (in dollars per share)	$ 0.10	$ 0.01	$ 0.01	$ 0.01	$ 0.40	$ 0.40	$ 0.10