Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on securities, tax expense (benefit)	$ (34)	$ 1	$ 37	$ 98
Accretion of unrealized loss on securities reclassified to held-to-maturity, tax expense	128	$ 138	277	$ 263
Reclassification adjustment for losses included in net income, tax benefit	$ 5		$ 5