Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Net operating loss carryforwards	$ 23,589	$ 17,248
Allowance for doubtful accounts	1,134	1,037
Inventory valuation reserves	2,093	629
Equity compensation	435	353
Goodwill	4,087	965
Accrued compensation	657	587
Foreign tax credit carryforward	3,802	3,894
Lease liability	1,945	3,992
Accrued liabilities	2,076	3,530
Property and equipment	3,640	0
Intangible assets	6,026	0
Other	353	96
Total gross deferred tax assets	49,837	32,331
Valuation allowance	(48,671)	(20,341)
Total deferred tax assets, net	1,166	11,990
Deferred tax liabilities:
Property and equipment	0	(3,696)
Intangible assets	0	(4,134)
ROU asset	(686)	(3,793)
Prepaid insurance and other	(257)	(331)
Total gross deferred tax liabilities	(943)	(11,954)
Net deferred tax assets	$ 223	$ 36