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Accrued and Other Expenses (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Payables and Accruals [Abstract] |  |
Employee related expenses | $ 2,233 | $ 1,894
Accrued construction related expenses | 188 | 948
Accrued professional fees | 750 | 465
Accrued royalties | 2,419 | 1,780
Accrued freight and delivery charges | 882 | 2,556
Deferred rent | 0 | 712
Other accrued liabilities | 437 | (355)
Total accrued liabilities | 8,578 | 8,392
accrued equipment expense | 429 | 0
Accrual for Taxes Other than Income Taxes, Current | 806 | 0
Accrued Utilities, Current | 10 | 327
Sales and Excise Tax Payable, Current | $ 424 | $ 65

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