(3) Inventories - Inventories (Details) - USD ($)	Dec. 28, 2019	Dec. 29, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 778,409	$ 706,982
Work in process	1,898,916	2,248,370
Finished goods	871,861	693,943
Gross Inventory	3,549,186	3,649,295
Reserve for obsolescence	(449,362)	(456,362)
Total	$ 3,099,824	$ 3,192,933

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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 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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