Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Exercise of stock options (in shares)	3,564
Dividend declared, shares issued		358,851
Dividend declared percentage		5.00%
Common Stock [Member]
Exercise of stock options (in shares)	3,564	3,313
Treasury Stock [Member]
Treasury stock purchased (in shares)	2,000	2,947