Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020
Shares of restricted stock awards surrendered (in shares)	1,404	1,711		1,904
Cash dividends per share (in dollars per share)	$ 0.31	$ 0.31	$ 0.31	$ 0.31