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Property, Plant, and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 6,916   $ 6,916   $ 6,885
Accumulated depreciation (3,409)   (3,409)   (2,843)
Total 3,507   3,507   4,042
Depreciation expense 300 400 604 699  
Leaseholds [Member]
         
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 1,729   1,729   1,716
Furniture [Member]
         
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 952   952   952
Equipment [Member]
         
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 1,503   1,503   1,473
Computers [Member]
         
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 2,129   2,129   2,141
Buildings and Land [Member]
         
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 603   $ 603   $ 603