Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income	$ 14,992	$ 16,459	$ 13,446
Other comprehensive (loss) income:
Unrealized holding (loss) gain on available for sale securities arising during the period on securities held at end of period, net of tax of $(996), $4,703, and $(6,996), respectively	(1,850)	8,734	(12,992)
Reclassification adjustment for prior period unrealized (gain) loss previously reported in other comprehensive income recognized during current period, net of tax of $56, $(34), and $23, respectively	(105)	63	(42)
Change in unfunded portion of postretirement benefit obligations, net of tax of $(74), $(382), and $1,589, respectively	(138)	(710)	2,953
Other comprehensive (loss) income	(2,093)	8,087	(10,081)
Comprehensive income	$ 12,899	$ 24,546	$ 3,365