Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 175,700,000	$ 158,800,000
Cost of sales	140,200,000	126,800,000
Gross margin	35,500,000	32,000,000
Operating expenses	37,000,000	28,900,000
Operating (loss) income	(1,500,000)	3,100,000
Interest expense, net	600,000	500,000
(Loss) income from continuing operations before income taxes	(2,100,000)	2,600,000
Income tax (benefit) expense	(1,200,000)	1,100,000
(Loss) income from continuing operations	(900,000)	1,500,000
Loss from discontinued operations, net of taxes	0	(100,000)
Net (loss) income	$ (900,000)	$ 1,400,000
(Loss) income from continuing operations per share - basic and diluted	$ (0.04)	$ 0.06
Loss from discontinued operations per share - basic and diluted	0.00	0.00
Net (loss) income per share - basic and diluted	$ (0.04)	$ 0.06
Weighted average shares outstanding:
Basic and diluted shares outstanding	24.7	24.4