CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Revenue	$ 800,000	$ 1,421,000	$ 1,630,000	$ 2,620,000
Operating expenses:
Cost of goods sold (exclusive of depreciation and amortization)	3,142,000	3,001,000	6,165,000	6,038,000
Research and development	4,994,000	4,170,000	9,572,000	8,158,000
Selling, general and administrative	6,516,000	10,382,000	12,570,000	19,722,000
Depreciation and amortization	1,178,000	884,000	2,303,000	1,766,000
Total operating expenses	15,830,000	18,437,000	30,610,000	35,684,000
Operating loss	(15,030,000)	(17,016,000)	(28,980,000)	(33,064,000)
Other income (expense):
Interest income (expense)	(343,000)	109,000	126,000	109,000
Change in fair value of warrants	(263,000)	17,763,000	(3,063,000)	24,150,000
Other income (loss)	14,000	(37,000)	(67,000)	(53,000)
Income (loss) before income taxes	(15,622,000)	819,000	(31,984,000)	(8,858,000)
Benefit (Provision) for income taxes	(148,000)	8,000	(135,000)	(26,000)
Net income (loss)	(15,770,000)	827,000	(32,119,000)	(8,884,000)
Foreign currency translation adjustment	20,000	(9,000)	452,000	(22,000)
Comprehensive income (loss)	(15,750,000)	818,000	(31,667,000)	(8,906,000)
Net income (loss)	(15,770,000)	827,000	(32,119,000)	(8,884,000)
Net income (loss) attributable to common stockholders	$ (15,770,000)	$ 827,000	$ (32,119,000)	$ (8,884,000)
Weighted average of shares outstanding – basic	106,749	101,071	106,951	99,886
Weighted average of shares outstanding – diluted	106,749	102,381	106,951	99,886
Net income (loss) attributable to common stockholders per share - basic	$ (0.15)	$ 0.01	$ (0.3)	$ (0.09)
Net loss attributable to common stockholders per share - diluted	$ (0.15)	$ 0.01	$ (0.3)	$ (0.09)