(12) Net Income(Loss) Per Share - Basic and diluted net income(loss) per share calculations (Details) - USD ($)	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Basic EPS Computation:
Net income (loss)	$ 908,064	$ (638,202)
Weighted average Common shares Outstanding	13,251,521	13,207,097
Basic EPS	$ 0.07	$ (0.05)
Diluted EPS Computation:
Net income (loss)	$ 908,064	$ (638,202)
Weighted average Common shares Outstanding	13,251,521	13,207,097
Dilutive effect of stock options	$ 97,061
Total shares	13,348,582	13,207,097
Diluted net income (loss) per share	$ 0.07	$ (0.05)