Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Consolidated Statements of Comprehensive Income [Abstract]
Net (loss) income	$ (3,350)	$ 1,066	$ 636	$ 5,140
Other comprehensive income:
Change in net actuarial gain	35	29	70	57
Tax effect on change in net actuarial gain	(12)	(10)	(24)	(20)
Unrealized holding gains arising during the period	2,654	4,358	7,900	5,729
Tax effect on unrealized holding gains arising during the period	(929)	(1,525)	(2,765)	(2,005)
Reclassification adjustment for losses (gains) included in net income	10	(410)	(2,491)	(484)
Tax effect on reclassification adjustment for losses (gains) included in net income	(3)	143	872	169
Other comprehensive income, net of tax	1,755	2,585	3,562	3,446
Comprehensive (loss) income	$ (1,595)	$ 3,651	$ 4,198	$ 8,586