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Schedule of Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Schedule of Accrued Liabilities [Line Items]    
Employee compensation $ 3,800 $ 4,680
Accrued interest payable 251  
Accrued purchases 718 604
Taxes 457 166
Current portion of contingent consideration 5,878 4,480
Professional fees 441 269
Unearned revenue 202 258
Other accrued expenses 1,915 1,600
Total $ 13,662 $ 12,057