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Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Accrued Expenses and Other Current Liabilities [Line Items]    
Salary and related expenses $ 5,685 $ 5,662
Accrued interest 199 615
Construction in progress   238
Other 2,193 1,414
Accrued expenses and other current liabilities $ 8,077 $ 7,929