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, 2023
Dec. 31, 2022
Finished goods $ 28 $ 28
Work in process 0 0
Raw materials 274 250
Total inventory $ 302 $ 278