Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total revenues	$ 545,000	$ 1,556,000	$ 446,000
Costs and expenses:
Research and development	2,353,000	2,352,000	2,644,000
Selling, general and administrative	3,918,000	3,972,000	4,062,000
Total costs and expenses	9,833,000	9,779,000	10,109,000
Loss from operations	(9,288,000)	(8,223,000)	(9,663,000)
Other Income and Expense
Adjustments to fair value of warrant derivatives		52,000	99,000
Adjustment to warrant exercise price		(24,000)
Other income	59,000	64,000	37,000
Net loss	$ (9,229,000)	$ (8,131,000)	$ (9,527,000)
Basic and diluted net loss per common share	$ (1.23)	$ (4.03)	$ (9.06)
Basic and diluted weighted average number of common shares outstanding	7,486,584	2,016,869	1,052,473
Commercial Product Revenues [Member]
Total revenues	$ 5,000		$ 11,000
Costs and expenses:
Cost of revenues	3,259,000	$ 2,245,000	3,072,000
Government Contract Revenues [Member]
Total revenues	540,000	1,556,000	435,000
Costs and expenses:
Cost of revenues	$ 303,000	$ 1,210,000	$ 331,000