Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales		$ 163.9	$ 193.0	$ 323.2	$ 372.3
Cost of sales		(137.5)	(175.9)	(276.8)	(338.1)
Gross profit		26.4	17.1	46.4	34.2
Selling and administrative expenses		(21.4)	(24.3)	(44.7)	(47.3)
Other income (expense), net		0.6	1.8	3.3	6.0
Impairments, restructuring charges, and other items		(3.7)	(0.8)	(5.2)	(4.9)
Operating income (loss)		1.9	(6.2)	(0.2)	(12.0)
Interest expense		(1.8)	(2.4)	(3.6)	(4.7)
Interest income		2.0	0.5	2.6	0.9
Income (loss) from continuing operations before taxes		2.1	(8.1)	(1.2)	(15.8)
Tax benefit (expense)		(0.1)	(0.3)	0.2	(0.4)
Income (loss) from continuing operations		2.0	(8.4)	(1.0)	(16.2)
Loss from discontinued operations, net of tax		(0.3)	(0.3)	(0.5)	(3.6)
Net income (loss)		$ 1.7	$ (8.7)	$ (1.5)	$ (19.8)
Basic income (loss) per share (a):
Loss from continuing operations (in dollars per share)	[1]	$ 0.11	$ (0.46)	$ (0.05)	$ (0.88)
Loss from discontinued operations (in dollars per share)	[1]	(0.02)	(0.01)	(0.03)	(0.19)
Net loss per share (in dollars per share)	[1]	$ 0.09	$ (0.47)	$ (0.08)	$ (1.07)
Weighted average shares, basic (in thousands)	[1]	18,563	18,480	18,563	18,480
Earnings Per Share, Diluted [Abstract]
Loss from discontinued operations (in dollars per share)		$ (0.02)	$ (0.01)	$ (0.03)	$ (0.19)
Income (loss) from continuing operations (in dollars per share)		0.11	(0.46)	(0.05)	(0.88)
Net income (loss) per share (in dollars per share)		$ 0.09	$ (0.47)	$ (0.08)	$ (1.07)
Weighted average shares, diluted (in thousands)		18,707	18,480	18,563	18,480
Cash dividends declared per share		$ 0	$ 0	$ 0	$ 0

[1] During second quarters of 2014 and 2015, we granted restricted stock units ("RSUs") to our non-employee directors and key employees. Also, during 2014 and 2015, we granted non-qualified stock options to our officers. For the six months ended June 30, 2015 and 2014 and the three months ended June 30, 2014, RSUs and options are not included in diluted earnings per share information, as the effect would be antidilutive.