(11) Net Income (Loss) Per Share - Net Income (Loss) Per Share Basic and Diluted (Details) - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Basic Computation:
Net income (loss)	$ (1,717,702)	$ (453,617)	$ 450,619
Weighted average common shares outstanding	13,203,436	13,201,284	13,180,428
Basic net income (loss) per share	$ (0.13)	$ (0.03)	$ 0.03
Diluted Computation:
Net income (loss)	$ (1,717,702)	$ (453,617)	$ 450,619
Weighted average common shares outstanding	13,203,436	13,201,284	13,180,428
Stock options			$ 458,646
Total shares	13,203,436	13,201,284	13,639,074
Diluted net income (loss) per share	$ (0.13)	$ (0.03)	$ 0.03