Consolidated Statements of Operations - USD ($)		12 Months Ended
		Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Statement [Abstract]
Sales, net		$ 21,201,482	$ 21,664,648	$ 17,884,886
Cost of sales		10,724,177	11,274,114	10,350,281
Gross profit		10,477,305	10,390,534	7,534,605
Operating expenses:
Sales and marketing		4,459,224	1,558,213	1,507,868
Research and development		4,007,381	2,522,768	891,601
General and administrative		17,641,889	9,214,763	7,201,231
Other		745,773	0	0
Operating expenses		26,854,267	13,295,744	9,600,700
Operating loss		(16,376,962)	(2,905,210)	(2,066,095)
Nonoperating income (expense):
Interest expense, net		(152,784)	(333,286)	(566,917)
Loss on debt extinguishment		0	(313,099)	0
Nonoperating expenses		(152,784)	(646,385)	(566,917)
Loss before income taxes		(16,529,746)	(3,551,595)	(2,633,012)
Provision for taxes		0	0	(4,527)
Loss from continuing operations		(16,529,746)	(3,551,595)	(2,637,539)
Income (loss) from discontinued operations		(315,140)	623,410	(133,528)
Gain on sale of discontinued operations		5,467,268	0	0
Income (loss) from discontinued operations, net		5,152,128	623,410	(133,528)
Net loss		$ (11,377,618)	$ (2,928,185)	$ (2,771,067)
Basic and diluted earnings (loss) per common share:
Loss from continuing operations		$ (0.37)	$ (0.10)	$ (0.07)
Earnings (loss) from discontinued operations		0.11	0.02	(0.01)
Basic and diluted loss per common share		$ (0.26)	$ (0.08)	$ (0.08)
Basic and diluted weighted average common shares outstanding	[1]	44,598,879	37,294,321	35,877,341

[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.