Note 5 - Inventory, Net - Summary of Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Raw materials	$ 458	$ 460
Work in process	5	5
Finished goods	109	192
Inventory at cost	572	657
Less reserve for obsolescence	(568)	(338)
Inventory, net	$ 4	$ 319

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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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

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Amount of valuation reserve for inventory.

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

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