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Accrued and Other Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Employee related expenses	$ 1,048	$ 2,233
Accrued construction related expenses	0	188
Accrued equipment	55	429
Accrued professional fees	1,129	750
Accrued royalties	2,624	2,419
Accrued freight and delivery charges	2,901	882
Accrued real estate tax	1,637	806
Accrued utilities	748	10
Sales tax liability	1,386	424
Other accrued liabilities	1,614	437
Total accrued liabilities	$ 13,142	$ 8,578

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for utilities, such as electrical power, heating oil, natural gas, and water. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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