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 Mar. 31, 2013	$ 3,757	$ 122,538	$ 99,658	$ 12,998	$ (11,558)
Equity based compensation		73
Net income (loss)			(3,151)			(3,151)
Additional minimum pension liability, net of tax				81
Net unrealized holding gains (losses) arising during period, net of tax				1,705
Reclassification adjustment for losses (gains) included in net income, net of tax				(1,038)
Balance at Jun. 30, 2013	3,757	122,611	96,507	13,746	(11,558)	225,063
Balance at Dec. 31, 2012	3,757	122,475	97,964	7,899	(11,558)
Equity based compensation		136
Net income (loss)			(1,457)			(1,457)
Additional minimum pension liability, net of tax				161
Net unrealized holding gains (losses) arising during period, net of tax				7,489
Reclassification adjustment for losses (gains) included in net income, net of tax				(1,803)
Balance at Jun. 30, 2013	3,757	122,611	96,507	13,746	(11,558)	225,063
Balance at Dec. 31, 2013	3,757	122,827	106,209	16,883	(11,558)	238,118
Acquisition of treasury stock					(736)
Stock issued during period, value, stock options exercised					16
Equity based compensation		221
Net income (loss)			6,199			6,199
Additional minimum pension liability, net of tax				53
Net unrealized holding gains (losses) arising during period, net of tax				1,379
Reclassification adjustment for losses (gains) included in net income, net of tax				64
Balance at Jun. 30, 2014	3,757	123,048	112,408	18,379	(12,278)	245,314
Balance at Mar. 31, 2014	3,757	122,937	110,757	15,719	(11,558)
Acquisition of treasury stock					(736)
Stock issued during period, value, stock options exercised					16
Equity based compensation		111
Net income (loss)			1,651			1,651
Additional minimum pension liability, net of tax				27
Net unrealized holding gains (losses) arising during period, net of tax				2,448
Reclassification adjustment for losses (gains) included in net income, net of tax				185
Balance at Jun. 30, 2014	$ 3,757	$ 123,048	$ 112,408	$ 18,379	$ (12,278)	$ 245,314