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Accrued and Other Expenses (Tables)
12 Months Ended
Dec. 31, 2018
Payables and Accruals [Abstract]  
Summary of Accrued and Other Expenses
Accrued and other expense consists of the following:
 
December 31,
 
2018
 
2017
Employee related expenses
$
1,894

 
$
667

Accrued construction related expenses
948

 
2,197

Accrued professional fees
465

 
529

Accrued royalties
1,780

 
206

Accrued freight and delivery charges
2,556

 
2,197

Deferred rent
712

 
861

Other accrued liabilities
37

 
919

Total accrued liabilities
$
8,392

 
$
7,576