CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating expenses:
Research and development	$ 11,241,000	$ 6,827,000	$ 18,707,000	$ 12,847,000
General and administrative	5,862,000	4,899,000	12,415,000	9,782,000
Total operating expenses	17,103,000	11,726,000	31,122,000	22,629,000
Loss from operations	(17,103,000)	(11,726,000)	(31,122,000)	(22,629,000)
Other income:
Interest income	95,000	75,000	158,000	108,000
Total other income, net	95,000	75,000	158,000	108,000
Net loss before provision for income taxes	(17,008,000)	(11,651,000)	(30,964,000)	(22,521,000)
Provision for income taxes	(38,000)	0	(98,000)	0
Net loss	(17,046,000)	(11,651,000)	(31,062,000)	(22,521,000)
Cumulative dividends on convertible preferred stock				(2,309,000)
Net loss attributable to common stockholders	$ (17,046,000)	$ (11,651,000)	$ (31,062,000)	$ (24,830,000)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.68)	$ (0.47)	$ (1.24)	$ (1.34)
Weighted average shares of common stock outstanding, basic and diluted	24,958,678	24,865,112	24,956,932	18,520,536
Comprehensive loss:
Net loss	$ (17,046,000)	$ (11,651,000)	$ (31,062,000)	$ (22,521,000)
Other comprehensive loss:
Unrealized (loss) gain on available-for-sale securities, net of tax of $0	(61,000)	26,000	(456,000)	6,000
Total other comprehensive income (loss)	(61,000)	26,000	(456,000)	6,000
Comprehensive loss	$ (17,107,000)	$ (11,625,000)	$ (31,518,000)	$ (22,515,000)