CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues:
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Sublicense And Other Revenue [Member]	Sublicense And Other Revenue [Member]	Sublicense And Other Revenue [Member]	Sublicense And Other Revenue [Member]
Total revenues	$ 258	$ 183	$ 502	$ 267
Operating expenses:
Research and development	15,915	10,215	27,693	17,863
General and administrative	4,396	4,195	8,667	8,762
Total operating expenses	20,311	14,410	36,360	26,625
Loss from operations	(20,053)	(14,227)	(35,858)	(26,358)
Other income, net:
Interest income, net	630	1,273	1,342	2,671
Other income	6	0	4	0
Loss before income taxes	(19,417)	(12,954)	(34,512)	(23,687)
Income taxes	0	(7)	0	(7)
Net loss	(19,417)	(12,961)	(34,512)	(23,694)
Unrealized gain on marketable securities	13	20	14	22
Comprehensive loss	$ (19,404)	$ (12,941)	$ (34,498)	$ (23,672)
Basic, net loss per common share (in dollars per share)	$ (0.54)	$ (0.42)	$ (1.02)	$ (0.77)
Diluted, net loss per common share (in dollars per share)	$ (0.54)	$ (0.42)	$ (1.02)	$ (0.77)
Weighted average common shares outstanding, basic (in shares)	35,749,160	30,632,347	33,850,346	30,617,970
Weighted average common shares outstanding, diluted (in shares)	35,749,160	30,632,347	33,850,346	30,617,970