(Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Employee related expenses	$ 1,168	$ 1,048
Accrued equipment	0	55
Accrued professional fees	980	1,129
Accrued royalties	2,380	2,624
Accrued freight and delivery charges	1,770	2,901
Accrued real estate tax	2,046	1,637
Accrued utilities	862	748
Sales tax liability	723	1,386
Other accrued liabilities	1,315	1,614
Total accrued liabilities	$ 11,244	$ 13,142