Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
AOCI Attributable to Parent [Member]      
Other comprehensive income (loss), tax $ 796 $ 709 $ 2,180
Retained Earnings [Member]      
Cash dividends declared, per share (in dollars per share) $ 0.09    
Cash dividends declared, per share (in dollars per share) $ 0.09