Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Sales	$ 311,633	$ 329,459	$ 334,413
Cost of sales	224,755	236,220	237,576
Gross profit	86,878	93,239	96,837
Selling, general and administrative expenses	81,045	79,533	76,196
Impairment charges	5,766	6,239	0
Other expense, net	514	471	559
(Loss) income from operations	(447)	6,996	20,082
Interest expense	737	1,128	859
Interest income	(59)	(64)	(118)
(Loss) income from continuing operations before income taxes	(1,125)	5,932	19,341
Income taxes	1,233	1,537	1,486
Net (loss) income from continuing operations	(2,358)	4,395	17,855
Gain from disposal of discontinued operation, net of tax	218	4,890	0
Income from discontinued operations, net of tax	0	642	0
Net (loss) income	$ (2,140)	$ 9,927	$ 17,855
Basic (loss) earnings per share:
Continuing operations (in dollars per share)	$ (0.19)	$ 0.37	$ 1.53
Disposal of discontinued operation (in dollars per share)	$ 0.02	$ 0.41	$ 0.00
Discontinued operations (in dollars per share)	$ 0.00	$ 0.06	$ 0.00
Basic (loss) earnings per share (in dollars per share)	$ (0.17)	$ 0.84	$ 1.53
Diluted (loss) earnings per share:
Continuing operations (in dollars per share)	$ (0.19)	$ 0.37	$ 1.53
Disposal of discontinued operation (in dollars per share)	$ 0.02	$ 0.41	$ 0.00
Discontinued operations (in dollars per share)	$ 0.00	$ 0.05	$ 0.00
Diluted (loss) earnings per share (in dollars per share)	$ (0.17)	$ 0.83	$ 1.53
Cash dividends declared per share: (in dollars per share)	$ 0.08	$ 0.08	$ 0.08