Income Taxes (Income tax expense attributable to loss before income taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 0	$ 0	$ 0
State	84	107	105
Foreign	272	207	37
Current Income Tax Expense (Benefit)	356	314	142
Deferred:
Federal	295	187	4,445
State	33	63	505
Foreign	50	(333)	1,140
Deferred Income Tax Expense (Benefit)	378	(83)	6,090
Income tax expense	$ 734	$ 231	$ 6,232