Note D - Inventories - Summary of Inventories (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Component parts and other materials	$ 142,948	$ 79,339
Total inventories	1,792,335	1,541,513
Dental Segment [Member]
Finished goods, net	(1,315,263)	(342,465)
Finished goods, net	1,315,263	342,465
Medical Segment [Member]
Finished goods, net	(334,124)	(1,119,709)
Finished goods, net	$ 334,124	$ 1,119,709

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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