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v3.25.2

Description of Business and Basis of Presentation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 23, 2025 | Jul. 17, 2025 | Dec. 06, 2023 | Oct. 31, 2023 | Jul. 31, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Sep. 24, 2025 | Jul. 24, 2025
Targeted or Tracking Stock, Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  |  |  |  | 6,663,000 | 6,663,000 |  |
Unpaid common stock dividend |  |  |  |  |  |  | $ 1.75 |  |
Closing agreement date |  |  |  | Nov. 17, 2023 |  | Nov. 17, 2023 |  |  |
Dividend paid |  |  | $ 11,700 |  |  | $ 0 | $ 11,660 |  |
Accumulated losses since inception |  |  |  |  |  | 404,164 | $ 388,219 |  |
Cash and cash equivalents and short term investments |  |  |  |  |  | $ 18,000 |  |  |
O 2024 Q2 Dividends |  |  |  |  |  |  |  |  |
Targeted or Tracking Stock, Stock [Line Items] |  |  |  |  |  |  |  |  |
Unpaid common stock dividend |  |  |  |  |  | $ 1.75 |  |  |
Subsequent Event | Pre-Funded Warrant |  |  |  |  |  |  |  |  |
Targeted or Tracking Stock, Stock [Line Items] |  |  |  |  |  |  |  |  |
Surrendered warrants to acheive common stock | 2,808,070 |  |  |  |  |  |  |  |
Offering price per share |  | $ 3.4199 |  |  | $ 3.4199 |  |  |  |
Warrants issued to purchase common stock |  | 6,022,869 |  |  |  |  |  | 546,348 |
Common stock, shares issued | 2,807,967 |  |  |  |  |  |  |  | 2,084,509
Exercise price |  | $ 0.0001 |  |  |  |  |  | $ 0.0001 |
Subsequent Event | Private Placement Offering |  |  |  |  |  |  |  |  |
Targeted or Tracking Stock, Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from private investment in private equity |  |  |  |  | $ 100,000 |  |  |  |
Number of shares issued in the offering |  | 23,216,898 |  |  |  |  |  |  |
Offering price per share |  | $ 3.42 |  |  |  |  |  |  |
Exercise price |  |  |  |  | $ 4.1 |  |  |  |
Maximum | Subsequent Event | Private Placement Offering |  |  |  |  |  |  |  |  |
Targeted or Tracking Stock, Stock [Line Items] |  |  |  |  |  |  |  |  |
Warrants issued to purchase common stock |  |  |  |  | 3,070,177 |  |  |  |

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