(3) Net Income Per Common and Common Equivalent Share - Table presents calculation of both basic and diluted earnings per share ("EPS") (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Sep. 26, 2015	Oct. 01, 2016	Sep. 26, 2015
Basic EPS Computation:
Net income (loss)	$ (138,786)	$ 8,249	$ (200,395)	$ 195,868
Weighted average Common shares Outstanding	13,203,436	13,197,827	13,200,584	13,174,598
Basic EPS	$ (0.01)	$ 0.00	$ (0.02)	$ 0.01
Diluted EPS Computation:
Net income (loss)	$ (138,786)	$ 8,249	$ (200,395)	$ 195,868
Weighted average Common shares Outstanding	13,203,436	13,197,827	13,200,584	13,174,598
Dilutive effect of stock options		$ 414,129		$ 482,290
Total Shares	13,203,436	13,611,956	13,200,584	13,656,888
Diluted EPS	$ (0.01)	$ 0.00	$ (0.02)	$ 0.01