Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Reclassifications for net unrealized gains on available-for-sale securities	$ 700	$ 995	$ 2,346	$ 2,890
Reclassification adjustment for employee benefit costs included in expense	1,371	1,867	2,742	3,734
Reclassifications adjustments - tax	$ (234)	$ (305)	$ (138)	$ (295)