Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue, net	$ 300	$ 201	$ 722	$ 399
Operating expenses:
Cost of sales	361	586	1,009	1,407
Research and development	912	857	2,205	1,965
Selling, general and administrative	4,029	10,608	18,219	22,696
Amortization of intangible assets	644	644	1,288	1,288
Change in warrant valuation	(1)	(59)	(6)	(41)
Change in contingent consideration valuation	1,327	3,881	(2,476)	5,722
Total operating expenses	7,272	16,517	20,239	33,037
Operating loss	(6,972)	(16,316)	(19,517)	(32,638)
Other expense:
Other (expense) income, net	(559)	987	(823)	397
Net loss	$ (7,531)	$ (15,329)	$ (20,340)	$ (32,241)
Per share information:
Net loss per share of common stock, basic	$ (1.05)	$ (7.17)	$ (3.63)	$ (16.43)
Net loss per share of common stock, diluted	$ (1.05)	$ (7.18)	$ (3.63)	$ (16.43)
Weighted average common shares outstanding, basic	7,181,640	2,137,191	5,610,037	1,962,655
Weighted average common shares outstanding, diluted	7,181,640	2,138,100	5,610,037	1,962,655