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Stockholders' Equity - Common Stock - Additional Information (Details) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 05, 2024 | May 13, 2024 | May 08, 2024 | Sep. 30, 2025 | Oct. 12, 2022 | Sep. 30, 2025 | Sep. 30, 2024 | Apr. 11, 2025 | Mar. 31, 2025 | Feb. 26, 2025 | Jan. 26, 2024 | Jul. 25, 2022 | Feb. 28, 2022 | Mar. 31, 2021
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock, net |  |  |  |  |  | $ 1,811,000 | $ 5,878,000 |  |  |  |  |  |  |
Number of shares subject to outstanding |  |  |  | 181,580 |  | 181,580 |  |  | 141,397 |  |  |  |  |
Initial offering date |  |  | May 8, 2024 |  |  |  |  |  |  |  |  |  |  |
Common Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock from stock options exercises, net, Shares |  |  | 416,666 |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants | 130,202 |  | 130,202 |  |  |  |  |  |  |  |  |  |  |
Excercise price per share | $ 9.6 |  | $ 9.6 |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price per share |  |  | $ 9.6 | $ 9.6 |  | $ 9.6 |  |  | $ 9.6 |  |  |  |  |
Pre-funded warrants exercised |  |  |  |  |  | 0 |  |  |  |  |  |  |  |
Warrant expiration period |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Warrant activity |  |  |  | 539,060 |  | 539,060 |  |  | 539,060 |  |  |  |  |
Pre-Funded Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excercise price per share | $ 9.588 |  | $ 9.588 |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price per share |  |  | $ 0.001 |  |  |  |  |  |  |  |  |  |  |
Pre-funded warrants exercised |  |  | 416,666 |  |  |  |  |  |  |  |  |  |  |
2021 Inducement Equity Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  |  |  |  |  |  |  |  |  |  | 62,500
Inducement Award Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  |  |  |  |  |  |  |  |  | 4,166 |
Equity Incentive Plan 2022 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  | 113,583 |  |  |  |  |  |  | 62,500 |  |
Excercise price per share |  |  |  |  | $ 33 |  |  |  |  |  |  |  |  |
Equity Incentive Plan 2022 [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  |  |  |  |  |  |  |  | 4,166 |  |
Equity Incentive Plan 2012 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  | 103,062 |  |  |  |  |  |  |  |  |
Common stock shares issued |  |  |  |  | 10,521 |  |  |  |  |  |  |  |  |
2022 Inducement Equity Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  | 83 |  |  |  |  |  |  |  |  |
A&R 2022 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  | 147,916 |  |  |  |  |  |  |  |  |
Maximum [Member] | Equity Incentive Plan 2022 [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares authorized to be issued |  |  |  |  | 4,250 |  |  |  |  |  |  |  |  |
2024 Shelf [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock value reserved for future issuance |  |  |  | $ 140,100,000 |  | $ 140,100,000 |  |  |  |  |  |  |  |
IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Securities authorized for offer and sale, amount |  |  |  |  |  |  |  |  |  |  | $ 150,000,000 |  |  |
Issuance of common stock from stock options exercises, net, Shares |  |  | 130,202 |  |  |  |  |  |  |  |  |  |  |
Net proceeds from issuance of offerings |  | $ 4,500,000 |  |  |  |  |  |  |  |  |  |  |  |
IPO [Member] | JonesTrading Institutional Services LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash fee percentage of aggregate gross proceeds raised in offering |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |
IPO [Member] | Common Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock from stock options exercises, net, Shares | 416,666 |  |  |  |  |  |  |  |  |  |  |  |  |
IPO [Member] | Maximum [Member] | Common Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of warrants | 416,666 |  | 416,666 |  |  |  |  |  |  |  |  |  |  |
At-The-Market Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock, net |  |  |  | $ 1,800,000 |  | $ 1,800,000 |  |  |  |  |  |  |  |
Issuance of common stock from stock options exercises, net, Shares |  |  |  | 0 |  | 701,729 |  |  |  |  |  |  |  |
Net proceeds from issuance of offerings |  |  |  |  |  | $ 1,800,000 |  |  |  |  |  |  |  |
At-The-Market Facility [Member] | 2024 ATM Prospectus [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock from stock options exercises, net, Shares |  |  |  |  |  | 1,198,134 |  |  |  |  |  |  |  |
Value of shares sold under equity distribution agreement |  |  |  |  |  | $ 6,900,000 |  |  |  |  |  |  |  |
At-The-Market Facility [Member] | 2024 ATM Prospectus [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock value reserved for future issuance |  |  |  |  |  |  |  | $ 4,766,105,000 |  | $ 5,311,508,000 | $ 2,605,728,000 |  |  |
At-The-Market Facility [Member] | 2024 Shelf [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock value reserved for future issuance |  |  |  | $ 3,100,000 |  | $ 3,100,000 |  |  |  |  |  |  |  |

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