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Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Accrued Liabilities Current [Abstract]    
Taxes and other assessments $ 3,220 $ 3,112
Compensation and benefits 1,718 2,492
Interest and final payment fee 881 411
Deferred rent 301 278
Consulting and other vendors 776 553
Legal and professional fees 226 268
Restructuring charges 49  
Other 75 281
Total $ 7,246 $ 7,395