CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	ATM Facility	Common Stock	Common Stock ATM Facility	Additional Paid-in Capital	Additional Paid-in Capital ATM Facility	Treasury Stock	Accumulated Other Comprehensive Income	Accumulated Deficit
Balance (in shares) at Mar. 31, 2024			27,029,731
Balance at Mar. 31, 2024	$ 114,286		$ 27		$ 474,441		$ (3,968)	$ 0	$ (356,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	1,160				1,160
Sale of common stock pursuant to 2019 Employee Stock Purchase Plan (in shares)			29,898
Sale of common stock pursuant to 2019 Employee Stock Purchase Plan	88				88
Unrealized gain (loss) on marketable securities available-for-sale, net	2							2
Net loss	(10,733)								(10,733)
Balance (in shares) at Jun. 30, 2024			27,059,629
Balance at Jun. 30, 2024	104,803		$ 27		475,689		(3,968)	2	(366,947)
Balance (in shares) at Mar. 31, 2024			27,029,731
Balance at Mar. 31, 2024	114,286		$ 27		474,441		(3,968)	0	(356,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,694)
Balance (in shares) at Sep. 30, 2024			27,059,629
Balance at Sep. 30, 2024	92,974		$ 27		476,801		(3,968)	22	(379,908)
Balance (in shares) at Jun. 30, 2024			27,059,629
Balance at Jun. 30, 2024	104,803		$ 27		475,689		(3,968)	2	(366,947)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	1,112				1,112
Unrealized gain (loss) on marketable securities available-for-sale, net	20							20
Net loss	(12,961)								(12,961)
Balance (in shares) at Sep. 30, 2024			27,059,629
Balance at Sep. 30, 2024	92,974		$ 27		476,801		(3,968)	22	(379,908)
Balance (in shares) at Mar. 31, 2025			29,001,481
Balance at Mar. 31, 2025	70,390		$ 29		481,956		(3,968)	5	(407,632)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	916				916
Sale of common stock pursuant to 2019 Employee Stock Purchase Plan (in shares)			95,037
Sale of common stock pursuant to 2019 Employee Stock Purchase Plan	161				161
Issuance of common stock (in shares)				190,067
Issuance of common stock		$ 397				$ 397
Unrealized gain (loss) on marketable securities available-for-sale, net	(4)							(4)
Net loss	(15,095)								(15,095)
Balance (in shares) at Jun. 30, 2025			29,286,585
Balance at Jun. 30, 2025	56,765		$ 29		483,430		(3,968)	1	(422,727)
Balance (in shares) at Mar. 31, 2025			29,001,481
Balance at Mar. 31, 2025	$ 70,390		$ 29		481,956		(3,968)	5	(407,632)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	1,673,627
Net loss	$ (34,512)
Balance (in shares) at Sep. 30, 2025			38,895,568
Balance at Sep. 30, 2025	66,339		$ 39		512,398		(3,968)	14	(442,144)
Balance (in shares) at Jun. 30, 2025			29,286,585
Balance at Jun. 30, 2025	56,765		$ 29		483,430		(3,968)	1	(422,727)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	1,096				1,096
Issuance of common stock (in shares)				9,608,772
Issuance of common stock		$ 27,882		$ 10		$ 27,872
Issuance of common stock upon exercise of stock options (in shares)			211
Unrealized gain (loss) on marketable securities available-for-sale, net	13							13
Net loss	(19,417)								(19,417)
Balance (in shares) at Sep. 30, 2025			38,895,568
Balance at Sep. 30, 2025	$ 66,339		$ 39		$ 512,398		$ (3,968)	$ 14	$ (442,144)