Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Performance Shares [Member]
Net shares issued in satisfaction of units earned, shares (in shares)			24,070	48,140
Cash dividend declared on preferred stock, per share (in dollars per share)	$ 0.328125	$ 0.328125	$ 0.65625	$ 0.65625
Cash dividends declared on common stock, per share (in dollars per share)	$ 0.18	$ 0.17	$ 0.35	$ 0.34
Restricted stock grants, shares (in shares)	32,016	37,332	68,462	86,534
Exercise of options, shares (in shares)		269		6,742
Repurchase of treasury stock, shares (in shares)		270,000	282,370	485,163
Stock grants, shares (in shares)			1,533	995
Net shares issued in satisfaction of units earned, shares (in shares)			33,604	32,068