Note 6 - Inventories - Inventories (Details) - USD ($)	Apr. 01, 2023	Dec. 31, 2022
Raw materials	$ 2,732,661	$ 2,645,442
Work in process	1,726,410	1,863,512
Finished goods	483,009	525,872
Gross inventory	4,942,081	5,034,826
Reserve for obsolescence	(249,425)	(158,925)
Inventories, net	$ 4,692,655	$ 4,875,901

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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