Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Total revenues	$ 1,405,000	$ 281,000	$ 2,234,000	$ 590,000
Operating expenses:
Research and development	1,131,000	1,993,000	2,290,000	4,237,000
Change in fair value of contingent consideration			(140,000)
Write-down of fixed assets	210,000		210,000
Selling, general and administrative	6,370,000	3,674,000	10,439,000	7,397,000
Total operating expenses	9,088,000	7,157,000	15,243,000	13,256,000
Loss from operations	(7,682,000)	(6,876,000)	(13,009,000)	(12,666,000)
Interest expense	(1,000)	(6,000)	(8,000)	(9,000)
Other income, net	2,759,000	10,000	10,222,000	82,000
Change in fair value of common stock warrant liabilities	(498,000)	(3,079,000)	(176,000)	5,082,000
Gain on extinguishment of warrant liability		47,000		47,000
Issuance and offering costs			(769,000)
Net loss before income taxes	(5,422,000)	(9,904,000)	(3,740,000)	(7,464,000)
Income tax benefit (provision)		10,000		(7,000)
Net loss	(5,422,000)	(9,894,000)	(3,740,000)	(7,471,000)
Net loss attributable to non-controlling interest	(161,000)	(205,000)	(538,000)	(307,000)
Net loss attributable to common stockholders	$ (5,261,000)	$ (9,689,000)	$ (3,202,000)	$ (7,164,000)
Net loss per share attributable to common stockholders:
Basic and diluted	$ (0.24)	$ (1.04)	$ (0.15)	$ (0.80)
Weighted-average number of shares used in per share calculations:
Basic and diluted	21,745,403	9,327,317	21,271,960	8,989,265
Other comprehensive loss, net of tax
Unrealized losses on investment securities				$ (1,000)
Foreign currency translation adjustment	$ (12,000)		$ (12,000)
Other comprehensive loss	(12,000)		(12,000)	(1,000)
Comprehensive loss attributable to common stockholders	(5,273,000)	$ (9,689,000)	(3,214,000)	(7,165,000)
Product
Revenues:
Total revenues	1,379,000	231,000	2,183,000	385,000
Operating expenses:
Cost of product revenues	1,587,000	1,490,000	2,443,000	1,622,000
License
Revenues:
Total revenues				100,000
Royalty
Revenues:
Total revenues	$ 26,000	12,000	$ 51,000	42,000
Contract Research And Government Grants
Revenues:
Total revenues		$ 38,000		$ 63,000