Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Total revenues		$ 157,000	$ 184,000	$ 157,000
Costs and expenses:
Research and development		622,000	178,000	1,875,000
Selling, general and administrative	$ 606,000	966,000	2,176,000	2,922,000
Total costs and expenses	606,000	2,541,000	2,615,000	7,512,000
Loss from operations	(606,000)	(2,384,000)	(2,431,000)	(7,355,000)
Other income and expense:
Other income		9,000	2,000	54,000
Net loss	$ (606,000)	$ (2,375,000)	$ (2,429,000)	$ (7,301,000)
Basic and diluted net loss per common share	$ (0.19)	$ (4.32)	$ (0.97)	$ (16.39)
Basic and diluted weighted average number of common shares outstanding	3,116,291	550,157	2,510,556	445,525
Commercial Product Revenues [Member]
Total revenues			$ 10,000
Costs and expenses:
Cost of revenues		$ 943,000	190,000	$ 2,688,000
Government Contract Revenues [Member]
Total revenues		157,000	174,000	157,000
Costs and expenses:
Cost of revenues		$ 10,000	$ 71,000	$ 27,000