Note 4 - Inventories, Net - Summary of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finished goods	$ 1,796	$ 1,249
Work in process	142	64
Raw materials	402	1,342
Inventories, gross	2,340	2,655
Less allowance for obsolescence	(56)	0
Inventories - net	$ 2,284	$ 2,655

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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