Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Unrealized (losses) gains arising during the period, tax $ (160) $ (160) $ 287
Reclassification adjustment for losses included in net earnings, tax     $ 12