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Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Accrued third party accounts payable $ 804 $ 774
Accrued audit and tax compliance fees 647 137
Accrued taxes 527 106
Accrued payroll 296 247
Accrued utilities 261 403
Accrued interest 162 184
Accrued rebates 131 57
Accrued propagation 51 550
Other 138 1,051
Accrued liabilities $ 3,017 $ 3,509