Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Retained Earnings [Member]
Cash dividends per share (in dollars per share)	$ 0.15	$ 0.14	$ 0.30	$ 0.28
Treasury acquired, shares (in shares)		35,494	58,200	35,494