Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Reclassifications for unrealized net gains on available-for-sale securities	$ 995	$ 1,606	$ 2,890	$ 3,088
Reclassification adjustment for employee benefit costs included in expense	1,867	768	3,734	1,536
Reclassifications adjustments - tax	$ (305)	$ 293	$ (295)	$ 543