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Accrued and Other Expenses - Schedule of Accrued and Other Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Dec. 31, 2014
Payables And Accruals [Abstract]      
Employee related expenses $ 228 $ 216 $ 473
Accrued construction 242 917 3,440
Accrued real estate taxes 516   200
Accrued legal expenses 641 99 73
Accrued professional fees 587 139 400
Accrued freight and delivery charges 200 162 247
Accrued site work     27
Accrued revolving credit facility interest 225 701 699
Derivative liability   455  
Other accrued liabilities 829 1,089 791
Total accrued and other expenses $ 3,468 $ 3,778 $ 6,350