Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Statements of Operations
Collaboration revenue	$ 4,263		$ 6,627
Operating expenses:
Research and development	5,716	$ 5,717	9,629	$ 13,795
General and administrative	4,320	3,209	7,242	6,785
Total operating expenses	10,036	8,926	16,871	20,580
Loss from operations	(5,773)	(8,926)	(10,244)	(20,580)
Interest income	216	2	417	3
Net loss	$ (5,557)	$ (8,924)	$ (9,827)	$ (20,577)
Per share information:
Net loss per share of common stock, Basic	$ (0.46)	$ (0.74)	$ (0.81)	$ (1.70)
Net loss per share of common stock, Diluted	$ (0.46)	$ (0.74)	$ (0.81)	$ (1.70)
Weighted-average common shares outstanding, Basic	12,197,801	12,127,385	12,190,182	12,125,156
Weighted-average common shares outstanding, Diluted	12,197,801	12,127,385	12,190,182	12,125,156