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Commitments and Contingencies (Details) (USD $)
9 Months Ended 0 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Oct. 16, 2012
Subsequent Event [Member]
Pending Litigation [Member]
Sep. 30, 2012
Subsequent Event [Member]
Pending Litigation [Member]
Sep. 30, 2012
Subsequent Event [Member]
Pending Litigation [Member]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]          
Remaining 2012 $ 143        
2013 656        
2014 474        
2015 and thereafter 0        
Total 1,273        
Payments for Legal Settlements     5,000,000    
Litigation Settlement, Expense $ 5,000,000 $ 0   $ 0 $ 5,000,000