Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2014	$ 3,757	$ 123,194	$ 119,638	$ 17,801	$ (12,353)
Acquisition of treasury stock					(287)
Shares issued under employee benefit plans					212
Equity based compensation		371
Shares issued under employee benefit plans (value)		(10)
Net income			5,343			$ 5,343
Additional minimum pension liability, net of tax				17
Unrealized holding (losses) gains arising during period, net of tax				4,595
Reclassification adjustment for (gains) losses included in net income, net of tax				(560)
Balance at Mar. 31, 2015	3,757	123,555	124,981	21,853	(12,428)	261,718
Balance at Dec. 31, 2015	3,757	123,480	141,501	7,418	(14,130)	262,026
Acquisition of treasury stock					(1,293)
Equity based compensation		139
Net income			4,074			4,074
Additional minimum pension liability, net of tax				18
Unrealized holding (losses) gains arising during period, net of tax				891
Reclassification adjustment for (gains) losses included in net income, net of tax				(48)
Balance at Mar. 31, 2016	$ 3,757	$ 123,619	$ 145,575	$ 8,279	$ (15,423)	$ 265,807