Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Shares of restricted stock awards surrendered (in shares)		629	1,245	1,658
Shares issued for acquisition (in shares)		161,875	416,478	161,875
Cash dividends per share (in dollars per share)	$ 0.31	$ 0.30	$ 0.92	$ 0.89
Shares issued per share (in dollars per share)	$ 42	$ 42.80	$ 42	$ 42.80