Quarterly Financial Information (unaudited) (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
Quarterly Financial Information Disclosure [Abstract]
Sales, net	$ 7,530,836	$ 6,084,690	$ 4,218,310	$ 3,367,647	$ 4,452,783	$ 3,937,286	$ 7,422,470	$ 5,852,109	$ 21,201,482	$ 21,664,648	$ 17,884,886
Cost of sales	3,695,837	3,169,321	2,109,109	1,749,911	2,442,714	2,074,325	3,748,684	3,008,391
Gross profit	3,834,999	2,915,369	2,109,201	1,617,736	2,010,069	1,862,961	3,673,786	2,843,718	10,477,305	10,390,534	7,534,605
Operating expenses	12,612,782	6,092,153	4,758,708	3,390,625	4,181,995	2,787,123	3,514,974	2,811,652	26,854,267	13,295,744	9,600,700
Operating income (loss)	(8,777,783)	(3,176,784)	(2,649,507)	(1,772,889)	(2,171,926)	(924,162)	158,812	32,066	(16,376,962)	(2,905,210)	(2,066,095)
Nonoperating expenses	(44,033)	(44,508)	(35,894)	(28,349)	(18,360)	(2,260)	(448,416)	(177,350)	(152,784)	(646,385)	(566,917)
Provision for income taxes					3,500	3,153	4,087	(10,740)	0	0	(4,527)
Loss from continuing operations	(8,821,816)	(3,221,292)	(2,685,401)	(1,801,238)	(2,186,786)	(923,269)	(285,517)	(156,024)	(16,529,746)	(3,551,595)	(2,637,539)
Income (loss) from discontinued operations	0	5,358,369	(78,723)	(127,517)	40,033	(31,121)	202,850	411,649	5,152,128	623,410	(133,528)
Net income (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 earnings (loss) per common share	$ (0.17)	$ 0.05	$ (0.07)	$ (0.05)	$ (0.06)	$ (0.03)	$ (0.00)	$ 0.01
Diluted earnings (loss) per common share	$ (0.17)	$ 0.04	$ (0.07)	$ (0.05)	$ (0.06)	$ (0.03)	$ (0.00)	$ 0.01
Basic weighted average common shares outstanding	51,178,664	47,065,009	42,121,150	38,030,688	37,904,534	37,868,672	36,990,032	36,414,041
Diluted weighted average common shares outstanding	51,178,664	47,556,697	42,121,150	38,030,688	37,904,534	37,868,672	36,990,032	37,472,579