Summarized Quarterly Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 139,194	$ 141,661	$ 164,335	$ 156,348	$ 158,271	$ 162,109	$ 152,784	$ 150,485	$ 601,538	$ 623,649	$ 584,733
Gross Profit	40,254	41,686	50,581	45,757	36,715	39,961	42,532	42,071	178,278	161,279	169,554
Income (loss) from continuing operations	(125)	631	10,925	2,622	1,489	(3,618)	6,327	4,763	14,053	8,961	26,442
Income (loss) from discontinued operations, net	896	(298)	494	2,617	(13,856)	875	(578)	(4,083)	3,709	(17,642)	(440)
Net income (loss)	$ 771	$ 333	$ 11,419	$ 5,239	$ (12,367)	$ (2,743)	$ 5,749	$ 680	$ 17,762	$ (8,681)	$ 26,002
Basic (in dollars per share)	$ 0	$ 0.02	$ 0.35	$ 0.08	$ 0.05	$ (0.11)	$ 0.20	$ 0.14	$ 0.46	$ 0.28	$ 0.78
Diluted (in dollars per share)	0	0.02	0.35	0.08	0.05	(0.11)	0.19	0.14	0.45	0.27
Basic (in dollars per share)	0.03	(0.01)	0.02	0.08	(0.44)	0.02	(0.02)	(0.12)	0.12	(0.55)	(0.01)
Diluted (in dollars per share)	0.03	(0.01)	0.02	0.08	(0.44)	0.02	(0.02)	(0.12)	0.12	(0.54)	(0.01)
Basic (in dollars per share)	0.03	0.01	0.37	0.16	(0.39)	(0.09)	0.18	0.02	0.58	(0.27)	0.77
Diluted (in dollars per share)	$ 0.03	$ 0.01	$ 0.37	$ 0.16	$ (0.39)	$ (0.09)	$ 0.17	$ 0.02	$ 0.57	$ (0.27)	$ 0.76