Note D - Inventories - Summary of Inventories (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Component parts and other materials	$ 72,824	$ 218,486
Total inventories	3,713,215	2,638,186
Dental Segment [Member]
Finished goods, net	3,640,391	2,404,970
Medical Segment [Member]
Finished goods, net	$ 0	$ 14,730

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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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date for elements of machinery or equipment held for the purpose of replacing similar parts in the course of repair or maintenance.

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