CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 9,433	$ 8,157	$ 8,731
Other comprehensive income (loss):
Unrealized holding (losses) gains on securities available for sale	(2,472)	236	(3,229)
Reclassification adjustment for other-than-temporary losses realized in net income	0	0	29
Reclassification adjustment gains realized in net income	(372)	(6,869)	(16)
Net unrealized losses	(2,844)	(6,633)	(3,216)
Tax effect	1,094	2,550	1,236
Net of tax amount	(1,750)	(4,083)	(1,980)
Change in funded status of defined benefit pension plan and other benefit plans:
Net gain (loss) arising during the period	(2,052)	(8,481)	6,487
Reclassification adjustment for amortization of prior service costs	(90)	(90)	(83)
Reclassification adjustment for amortization of net actuarial loss	1,484	681	1,624
Total before tax effect	(658)	(7,890)	8,028
Tax effect	251	3,033	(3,086)
Net of tax amount	(407)	(4,857)	4,942
Total other comprehensive income (loss)	(2,157)	(8,940)	2,962
Comprehensive income (loss)	$ 7,276	$ (783)	$ 11,693