XML 23 R50.htm IDEA: XBRL DOCUMENT v3.3.0.814
Commitments and Contingencies - Additional Information (Detail)
 9 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
Option
Dec. 31, 2010
USD ($)
Commitments and Contingencies Disclosure [Line Items]    
Minimum term of non-cancellable operating leases 1 year  
Expiration of non-cancellable operating leases maximum year 2020  
Financing for leasehold improvement   $ 1,100,000
Outstanding liability related to leasehold improvements $ 500,000  
Accrued liabilities    
Commitments and Contingencies Disclosure [Line Items]    
Leasehold Improvements reflected in Accrued liabilities 100,000  
Other non-current liabilities    
Commitments and Contingencies Disclosure [Line Items]    
Leasehold Improvements reflected in Other non-current liabilities $ 400,000  
Additional Concord Lease    
Commitments and Contingencies Disclosure [Line Items]    
Initial term of operating lease 2 years  
Number of renewal options | Option 4  
Renewal period of operating lease 2 years  
Future rent payment, 2016 $ 200,000  
Future rent payment, 2017 100,000  
Additional Concord Lease | Maximum    
Commitments and Contingencies Disclosure [Line Items]    
Future rent payment, remaining three months of 2015 $ 100,000