Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Retained Earnings [Member]
Cash dividends declared, per share (in dollars per share)			$ 0.27			$ 0.27
Cash dividends declared, per share (in dollars per share)	$ 0.28	$ 0.27		$ 0.27	$ 0.27