Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Cash dividends per common share (in dollars per share)	$ 0.26	$ 0.22
Retained Earnings [Member]
Cash dividends per common share (in dollars per share)	$ 0.26	$ 0.22
Common Stock Including Additional Paid in Capital [Member]
Employee stock purchase plan (in shares)	416	426
Dividend reinvestment plan (in shares)	5,425	4,624
Stock option exercises (in shares)	500	7,000
Share repurchase program (in shares)	119,120

Aggregate dividends paid during the period for each share of common stock outstanding.

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