INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating loss and other carryforwards	$ 45,557	$ 33,961
Share-based compensation	1,853	1,717
Inventory provision and UNICAP 263A	4,191	4,653
Lease liability	5,586	5,455
Other	385	1,186
Property and equipment	121	0
Intangible assets	514	0
Total deferred tax assets	58,207	46,972
Valuation allowance	(52,888)	(35,685)
Total deferred tax assets, net	5,319	11,287
Deferred tax liabilities:
Property and equipment	0	(851)
Intangibles	0	(5,127)
Right of use assets	(5,110)	(5,103)
Warrants	(209)	(206)
Total deferred tax liabilities	(5,319)	(11,287)
Net deferred taxes (liabilities)	$ 0	$ 0