Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Income Statement [Abstract]
Product sales	$ 6,511,571	$ 5,269,538
Cost of product sales	4,961,361	5,110,114
Gross Margin	1,550,210	159,424
Selling, general, and administrative expense	928,590	903,686
Income (loss) from operations	621,620	(744,262)
Other income (expense), net	(19,966)	48
Income (loss) before taxes	601,654	(744,214)
Income tax provision (benefit)
Net income (loss)	$ 601,654	$ (744,214)
Net income (loss) per basic common share	$ 0.05	$ (0.06)
Weighted average number of basic common shares outstanding	13,207,436	13,206,069
Net income (loss) per diluted common share	$ 0.05	$ (0.06)
Weighted average number of diluted common shares outstanding	13,247,131	13,206,069