Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Inventory - Inventory (Details)

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Note 5 - Inventory - Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Finished goods $ 28 $ 28
Work in process 6 9
Raw materials 11 86
Total inventory $ 45 $ 123