Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Retained Earnings [Member]
Cash dividends declared, per share (in dollars per share)	$ 0.27		$ 0.27	$ 0.26		$ 0.25
Cash dividends declared, per share (in dollars per share)		$ 0.27			$ 0.26