Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Selected Quarterly Financial Data (Unaudited) [Abstract]

Summary of selected quarterly financial data

	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Full Year
2012
Net sales	$	116.5		$	137.6		$	141.0		$	125.4		$	520.5
Gross margin		21.3			27.1			27.5			24.2			100.1
Operating expenses		23.4			24.6			25.5			24.3			97.8
Goodwill impairment		—			—			—			1.9			1.9
Gain on disposal of capital assets		—			—			(2.4	)		—			(2.4	)
Operating income (loss )		(2.1	)		2.5			4.4			(2.0	)		2.8
Net income (loss) from continuing operations		(2.8	)		1.7			3.7			(2.7	)		(0.1	)
Net loss from discontinued operations		(0.1	)		(0.1	)		(0.1	)		(0.1	)		(0.4	)
Net income (loss) per share—Diluted
Net income (loss) from continuing operations	$	(0.12	)	$	0.07		$	0.15		$	(0.12	)	$	—
Net loss from discontinued operations		(0.01	)		—			(0.01	)		(0.01	)		(0.02	)
Net income (loss)	$	(0.13	)	$	0.07		$	0.14		$	(0.13	)	$	(0.02	)
2011
Net sales	$	99.5		$	130.6		$	135.5		$	113.1		$	478.7
Gross margin		17.3			24.4			25.0			21.9			88.6
Operating expenses		23.3			25.6			25.4			24.1			98.4
Goodwill impairment		—			—			0.3			0.1			0.4
Operating loss		(6.0	)		(1.2	)		(0.7	)		(2.3	)		(10.2	)
Net loss from continuing operations		(6.6	)		(1.9	)		(1.4	)		(2.8	)		(12.7	)
Net loss from discontinued operations		(0.1	)		—			(0.3	)		(0.1	)		(0.5	)
Net income (loss) per share—Diluted
Net loss from continuing operations	$	(0.30	)	$	(0.09	)	$	(0.06	)	$	(0.13	)	$	(0.58	)
Net loss from discontinued operations		—			—			(0.02	)		—			(0.02	)
Net loss	$	(0.30	)	$	(0.09	)	$	(0.08	)	$	(0.13	)	$	(0.60	)