Consolidated Statements of Shareholders' Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance (in shares) at Dec. 31, 2014		$ 128
Beginning balance at Dec. 31, 2014	$ 169,596		$ 120,538	$ 87,777	$ (46)	$ (38,801)
Net (loss) income	2,610			2,610
Other comprehensive loss, net of tax	(9,912)					(9,912)
Dividends declared	(1,019)			(1,019)
Common shares issued	257		257
Stock based compensation	(285)		(267)		(18)
Net issuance of treasury stock	(142)		(4)		(138)
Ending balance (in shares) at Dec. 31, 2015		$ 128
Ending balance at Dec. 31, 2015	161,105		120,524	89,368	(202)	(48,713)
Net (loss) income	1,224			1,224
Other comprehensive loss, net of tax	(5,943)					(5,943)
Dividends declared	(1,035)			(1,035)
Common shares issued (in shares)		1
Common shares issued	527		526
Stock based compensation	51		54		(3)
Net issuance of treasury stock	12		(89)		101
Ending balance (in shares) at Dec. 31, 2016	129	$ 129
Ending balance at Dec. 31, 2016	155,941		121,015	89,557	(104)	(54,656)
Beginning balance adjustment	1		3	(2)
Net (loss) income	5,846			5,846
Other comprehensive loss, net of tax	16,430					16,430
Dividends declared	(519)			(519)
Common shares issued	405	1	404
Stock based compensation	554		625		(71)
Net issuance of treasury stock	268		93		175
Ending balance (in shares) at Dec. 31, 2017	130	$ 130
Ending balance at Dec. 31, 2017	$ 178,926		$ 122,140	$ 94,882	$ 0	$ (38,226)