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Summary of Significant Accounting Policies (Details 2)
12 Months Ended
Dec. 31, 2011
Allowance for Doubtful Accounts  
Percentage of invoice, treated as specific allowance for a doubtful account 100.00%
Computer equipment
 
Property, plant and equipment  
Property, plant and equipment, estimated useful life (in years) 3
Computer software
 
Property, plant and equipment  
Property, plant and equipment, estimated maximum useful life (in years) 5
Property, plant and equipment, estimated minimum useful life (in years) 3
Machinery
 
Property, plant and equipment  
Property, plant and equipment, estimated useful life (in years) 7
Furniture and fixtures
 
Property, plant and equipment  
Property, plant and equipment, estimated useful life (in years) 3
Building
 
Property, plant and equipment  
Property, plant and equipment, estimated useful life (in years) 39