Note 4 - Inventories - Schedule of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Raw materials	$ 3,374	$ 2,503
Work-in-process	17	1
Finished products	1,574	2,097
Total inventories	$ 4,965	$ 4,601

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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