Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information (Unaudited)
Net sales	$ 67,380	$ 81,202	$ 73,725	$ 86,393	$ 93,567	$ 107,697	$ 95,536	$ 77,310	$ 308,700	$ 374,110	$ 261,006
Gross profit	20,436	29,063	22,707	29,692	31,429	43,049	35,835	25,508	101,898	135,821	81,727
Income (loss) from continuing operations	(4,013)	4,026	(328)	5,714	(1,615)	14,760	12,155	5,960	5,399	31,261	15,972
Income (Loss) from a discontinued operation, net of taxes					(679)			281		(398)
Net income (loss)	(4,013)	4,026	(328)	5,714	(2,294)	14,760	12,155	6,241	5,399	30,863	13,302
Preferred stock dividends					(94)	(7,096)	(12,747)	(12,611)		(32,548)	(44,477)
Net (loss) income attributable to common stockholders	$ (4,013)	$ 4,026	$ (328)	$ 5,714	$ (2,388)	$ 7,664	$ (592)	$ (6,370)	$ 5,399	$ (1,685)	$ (31,175)
Basic and diluted earnings per share:
Continuing operations	$ (0.07)	$ 0.07	$ (0.01)	$ 0.10	$ (0.03)	$ 0.19	$ (0.02)	$ (0.16)	$ 0.10	$ (0.03)	$ (0.69)
Discontinued operation					(0.01)			0.01		(0.01)	(0.07)
Total basic and diluted earnings per share	$ (0.07)	$ 0.07	$ (0.01)	$ 0.10	$ (0.04)	$ 0.19	$ (0.02)	$ (0.15)	$ 0.10	$ (0.04)	$ (0.76)