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Long-Term Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Other Liabilities Disclosure [Abstract]    
Rent Payable $ 1,465 $ 1,533
Uncertain Tax Positions 3,005 2,967
Restructuring 1,580 1,785
Other 142 142
Total Long-Term Liabilities $ 6,192 $ 6,427