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 Jun. 30, 2013	$ 3,757	$ 122,611	$ 96,507	$ 13,746	$ (11,558)
Equity based compensation		109
Net income			6,274			6,274
Additional minimum pension liability, net of tax				80
Net unrealized holding (losses) gains arising during period, net of tax				3,069
Reclassification adjustment for losses (gains) included in net income, net of tax				(4,517)
Balance at Sep. 30, 2013	3,757	122,720	102,781	12,378	(11,558)	230,078
Balance at Dec. 31, 2012	3,757	122,475	97,964	7,899	(11,558)
Equity based compensation		245
Net income			4,817			4,817
Additional minimum pension liability, net of tax				241
Net unrealized holding (losses) gains arising during period, net of tax				10,558
Reclassification adjustment for losses (gains) included in net income, net of tax				(6,320)
Balance at Sep. 30, 2013	3,757	122,720	102,781	12,378	(11,558)	230,078
Balance at Dec. 31, 2013	3,757	122,827	106,209	16,883	(11,558)	238,118
Acquisition of treasury stock					(1,395)
Stock options exercised		(1)			16
Equity based compensation		87
Net income			9,662			9,662
Additional minimum pension liability, net of tax				79
Net unrealized holding (losses) gains arising during period, net of tax				1,235
Reclassification adjustment for losses (gains) included in net income, net of tax				79
Balance at Sep. 30, 2014	3,757	122,913	115,871	18,276	(12,937)	247,880
Balance at Jun. 30, 2014	3,757	123,048	112,408	18,379	(12,278)
Acquisition of treasury stock					(659)
Equity based compensation		(135)
Net income			3,463			3,463
Additional minimum pension liability, net of tax				26
Net unrealized holding (losses) gains arising during period, net of tax				(144)
Reclassification adjustment for losses (gains) included in net income, net of tax				15
Balance at Sep. 30, 2014	$ 3,757	$ 122,913	$ 115,871	$ 18,276	$ (12,937)	$ 247,880