Income Taxes Income Tax Expense (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Line Items]
Effective income tax rate	(1.90%)	16.70%	40.30%
Statutory tax rate	35.00%	35.00%	35.00%
Undistributed earnings of foreign subsidiaries		$ 3,500,000
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	0	0	121,000
Current State and Local Tax Expense (Benefit)	(134,000)	560,000	(149,000)
Current Foreign Tax Expense (Benefit)	570,000	897,000	963,000
Current Income Tax Expense (Benefit)	436,000	1,457,000	935,000
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	(1,000)	2,000	(35,000)
Deferred State and Local Income Tax Expense (Benefit)	2,000	(6,000)	(13,000)
Deferred Foreign Income Tax Expense (Benefit)	2,000	(21,526,000)	(22,287,000)
Deferred Income Tax Expense (Benefit)	3,000	(21,530,000)	(22,335,000)
Income Tax Expense (Benefit), Continuing Operations	439,000	(20,073,000)	(21,400,000)
Current Income Tax Expense (Benefit), Discontinued Operations [Abstract]
Current Federal Tax Expense (Benefit), Discontinued Operations	0	0	0
Current State and Local Tax Expense (Benefit), Discontinued Operations	1,000	(5,000)	0
Current Foreign Tax Expense (Benefit), Discontinued Operations	(1,000)	(424,000)	0
Current Income Tax Expense (Benefit), Discontinued Operations	0	(429,000)	0
Deferred Income Tax Expense (Benefit), Discontinued Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit), Discontinued Operations	9,000	0	0
Deferred State and Local Income Tax Expense (Benefit), Discontinued Operations	0	0	0
Deferred Foreign Income Tax Expense (Benefit), Discontinued Operations	0	0	0
Deferred Income Tax Expense (Benefit), Discontinued Operations	9,000	0	0
Income Tax Expense (Benefit), Discontinued Operations	9,000	(429,000)	0
Current Income Tax Expense (Benefit), Continuing and Discontinued Operations [Abstract]
Current Federal Tax Expense (Benefit), Continuing and Discontinued Operations	0	0	121,000
Current State and Local Tax Expense (Benefit), Continuing and Discontinued Operations	(133,000)	555,000	(149,000)
Current Foreign Tax Expense (Benefit), Continuing and Discontinued Operations	569,000	473,000	963,000
Current Income Tax Expense (Benefit), Continuing and Discontinued Operations	436,000	1,028,000	935,000
Deferred Income Tax Expense (Benefit), Continuing and Discontinued Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit), Continuing and Discontinued Operations	8,000	2,000	(35,000)
Deferred State and Local Income Tax Expense (Benefit), Continuing and Discontinued Operations	2,000	(6,000)	(13,000)
Deferred Foreign Income Tax Expense (Benefit), Continuing and Discontinued Operations	2,000	(21,526,000)	(22,287,000)
Deferred Income Tax Expense (Benefit), Continuing and Discontinued Operations	12,000	(21,530,000)	(22,335,000)
Income Tax Expense (Benefit), Continuing and Discontinued Operations	$ 448,000	$ (20,502,000)	$ (21,400,000)