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v3.26.1

Description of the Business and Financial Condition (Details) - USD ($) |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2026 | Jun. 30, 2025 | Jan. 31, 2025 | Mar. 31, 2026 | Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025 | Sep. 30, 2025 | Jun. 30, 2024
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Accumulated deficit |  |  |  | $ (245,495,000) | $ (245,495,000) |  | $ (233,672,000) |  |
At-the-market offering costs incurred but not paid included in accrued expenses and accounts payable |  |  |  |  | 150,000 | $ 0 |  |  |
Cash and cash equivalents |  |  |  | $ 14,948,000 | $ 14,948,000 | $ 18,351,000 | $ 18,563,000 |  |
Senior Secured Convertible Promissory Note |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares of common stock to purchase (up to) (in shares) |  | 103,225 |  |  |  |  |  | 103,225 |
Exercise price (in dollars per share) |  | $ 7.75 |  |  |  |  |  |  |
Warrants, contractual term (in years) |  | 5 years |  |  |  |  |  |  |
Debt instrument, face amount |  | $ 10,000,000.0 |  |  |  |  |  |  |
Proceeds from issuance of long-term debt |  | $ 9,900,000 |  |  |  |  |  |  |
January Common Warrants |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Issuance of common stock, net of issuance costs (in shares) |  |  | 1,261,830 |  |  |  |  |  |
Number of shares of common stock to purchase (up to) (in shares) |  |  | 1,261,830 |  |  |  |  |  |
Warrants, contractual term (in years) |  |  | 5 years |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock |  |  | $ 9,200,000 |  |  |  |  |  |
Common Stock | January Common Warrants |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Share price (in dollars per share) |  |  | $ 7.925 |  |  |  |  |  |
Exercise price (in dollars per share) |  |  | $ 7.80 |  |  |  |  |  |
Proceeds from issuance of common stock |  |  | $ 9,200,000 |  |  |  |  |  |
2024 Registration Statement |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, aggregate initial offering price |  |  |  |  |  |  |  |  | $ 200,000,000
At-The-Market Equity Offering Sales Agreement 2024 |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, aggregate initial offering price |  |  |  |  |  |  |  |  | $ 40,000,000
At-The-Market Equity Offering Sales Agreement 2024 | Common Stock |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Shares sold in offering (in shares) |  |  |  |  | 106,823 | 699,678 | 1,717,507 |  |
Share price (in dollars per share) |  |  |  | $ 9.52 | $ 9.52 | $ 7.82 | $ 9.46 |  |
Net proceeds |  |  |  |  | $ 800,000 | $ 6,700,000 | $ 16,200,000 |  |
2026 Registration Statement |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, aggregate initial offering price | $ 400,000,000 |  |  |  |  |  |  |  |
At-The-Market Equity Offering Sales Agreement 2026 |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, aggregate initial offering price | 100,000,000 |  |  |  |  |  |  |  |
Stock issuance costs |  |  |  |  | $ 200,000 |  |  |  |
At-the-market offering costs incurred but not paid included in accrued expenses and accounts payable | $ 200,000 |  |  |  |  |  |  |  |
At-The-Market Equity Offering Sales Agreement 2026 | Common Stock |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Shares sold in offering (in shares) |  |  |  |  | 119,479 |  |  |  |
Share price (in dollars per share) |  |  |  | $ 11.42 | $ 11.42 |  |  |  |
Net proceeds |  |  |  | $ 1,100,000 | $ 1,300,000 |  |  |  |
At-the-Market Offering |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stock issuance costs |  |  |  |  |  | $ 0 |  |  |
At-the-Market Offering | Common Stock |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |
Shares sold in offering (in shares) |  |  |  |  | 819,157 |  |  |  |
Share price (in dollars per share) |  |  |  | $ 9.80 | $ 9.80 |  |  |  |
Net proceeds |  |  |  |  | $ 7,800,000 |  |  |  |
Consideration received net of sales commissions |  |  |  |  | $ 8,000,000.0 |  |  |  |
Issuance of common stock, net of issuance costs (in shares) |  |  |  |  | 819,157 | 106,823 |  |  |

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