Loss Per Share Applicable to Common Stockholders (Details) - USD ($)		3 Months Ended								12 Months Ended
		Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Earnings per share
Net loss		$ (8,821,816)	$ 2,137,077	$ (2,764,124)	$ (1,928,755)	$ (2,146,753)	$ (954,390)	$ (82,667)	$ 255,625	$ (11,377,618)	$ (2,928,185)	$ (2,771,067)
Basic and diluted loss per common share										$ (0.26)	$ (0.08)	$ (0.08)
Weighted average common shares outstanding	[1]									44,598,879	37,294,321	35,877,341
Stock Options [Member]
Potentially dilutive securities
Diliutive securities	[2]									$ 6,534,167	$ 5,210,334	$ 5,244,918
Warrant [Member]
Potentially dilutive securities
Diliutive securities	[2]									470,444	470,444	423,007
Convertible Debt Securities [Member]
Potentially dilutive securities
Diliutive securities	[2]									$ 0	$ 0	$ 257,798

[1] Includes approximately 0.5 million, 0.4 million and 0.4 million nonvested restricted stock for the years 2017, 2016 and 2015, respectively, which are participating securities that feature voting and dividend rights.

[2] Excluded from the computation of loss per share as their impact is antidilutive.