(6) Inventories - Inventories (Details) - USD ($)	Mar. 27, 2021	Dec. 26, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 831,480	$ 752,760
Work in process	2,539,880	2,800,226
Finished goods	695,947	592,640
Gross inventory	4,067,307	4,145,626
Reserve for obsolescence	(436,155)	(436,155)
Inventories, net	$ 3,631,152	$ 3,709,471

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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 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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