CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Research and development	$ 4,925	$ 3,679
General and administrative	2,444	2,890
Total operating expenses	7,369	6,569
Loss from operations	(7,369)	(6,569)
Other income (expense):
Interest and other income	415	6
Interest and other expense	(185)	(155)
Loss before income taxes	(7,139)	(6,718)
Income tax expense	0	(1)
Net loss	(7,139)	(6,719)
Unrealized gain on short-term investments, net	12	0
Comprehensive loss	$ (7,127)	$ (6,719)
Net loss per share, basic (in usd per share)	$ (0.42)	$ (0.46)
Net loss per share, diluted (in usd per share)	$ (0.42)	$ (0.46)
Weighted average shares used to compute basic net loss per share (in shares)	16,844,243	14,596,789
Weighted average shares used to compute diluted net loss per share (in shares)	16,844,243	14,596,789