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(Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Employee related expenses	$ 1,615	$ 1,048
Accrued equipment	0	55
Accrued professional fees	1,016	1,129
Accrued royalties	2,288	2,624
Accrued freight and delivery charges	730	2,901
Accrued real estate tax	1,388	1,637
Accrued utilities	704	748
Sales tax liability	855	1,386
Other accrued liabilities	1,441	1,614
Total accrued liabilities	$ 10,037	$ 13,142

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. 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 amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. 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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