Note 3 - Inventory (Details Textual) - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Inventory, Net	$ 0	$ 239,000
Inventory, Gross	882,000	930,000
Inventory Valuation Reserves	882,000	691,000	$ 452,000
Inventory Adjustments	$ 191,000	$ 342,000

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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- Definition

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.

+ References

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Amount of valuation reserve for inventory.

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