Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 82,000	$ 155,000	$ 212,000	$ 377,000
Cost of revenues	123,000	83,000	316,000	243,000
Gross profit (loss)	(41,000)	72,000	(104,000)	134,000
Operating expenses:
Research and development	7,554,000	4,756,000	21,216,000	12,739,000
Selling, general and administrative	16,911,000	13,292,000	47,250,000	28,675,000
Total operating expenses	24,465,000	18,048,000	68,466,000	41,414,000
Operating loss	(24,506,000)	(17,976,000)	(68,570,000)	(41,280,000)
Other income (expense):
Other income	346,000	11,000	395,000	16,000
Interest expense	(496,000)	(172,000)	(866,000)	(292,000)
Extinguishment of debt				(181,000)
Change in estimated fair value of earn-out liabilities	77,892,000		77,892,000
Total other income (expense)	77,742,000	(161,000)	77,421,000	(457,000)
Income (loss) before income taxes	53,236,000	(18,137,000)	8,851,000	(41,737,000)
Income tax expense	0	0	0	0
Net income (loss)	53,236,000	(18,137,000)	8,851,000	(41,737,000)
Unrealized gain on short-term investments	14,000		7,000
Comprehensive income (loss)	53,250,000	(18,137,000)	8,858,000	(41,737,000)
Net income (loss)	53,236,000	(18,137,000)	8,851,000	(41,737,000)
Dividends on Series D convertible preferred stock	(1,598,000)	(2,773,000)	(7,383,000)	(3,888,000)
Redemption value of Series D convertible preferred stock	(799,000)	(1,386,000)	(3,692,000)	(57,263,000)
Net income (loss) per share attributable to common stockholders - basic	50,839,000	(22,296,000)	(2,224,000)	(102,888,000)
Net income (loss) attributable to common stockholders - diluted	$ 53,236,000	$ (22,296,000)	$ (2,224,000)	$ (102,888,000)
Net income (loss) per share attributable to common stockholders - basic	$ 1.38	$ (16.67)	$ (0.16)	$ (77.09)
Net income (loss) per share attributable to common stockholders - diluted	$ 0.76	$ (16.67)	$ (0.16)	$ (77.09)
Weighted average common stock outstanding - basic	36,920,116	1,337,797	13,690,186	1,334,562
Weighted average common shares outstanding - diluted	69,830,970	1,337,797	13,690,186	1,334,562