Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Unrealized gain (loss) on securities, pre-tax	$ (6,011)	$ (4,021)	$ 4,992
Reclassification adjustment for securities gains, pre-tax	(656)	(108)	(458)
Reclassification adjustment for impairment charge, pre-tax	7	3	7
Net unrealized holding losses on securities transferred from available-for-sale to held-to-maturity, pre-tax			(1,233)
Amortization of net unrealized holding losses to income during the period, pre-tax	$ 219	$ 173	$ 118