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Common stock (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 31, 2025 | Jul. 31, 2025 | Jan. 31, 2025 | Jun. 30, 2023 | Aug. 31, 2022 | Sep. 30, 2025 | Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2025
Capital Unit |  |  |  |  |  |  |  |  |
Stock issuance costs |  |  |  |  |  | $ 3,710,000 | $ 744,000 | $ 411,000 |
Shelf Registration |  |  |  |  |  |  |  |  |
Capital Unit |  |  |  |  |  |  |  |  |
Shares issued and sold (in shares) |  | 16,670,000 |  |  |  |  |  |  |
Net proceeds from company offering |  | $ 46,700,000 |  |  |  |  |  |  |
Cowen and Company L L C | ATM Offering Program |  |  |  |  |  |  |  |  |
Capital Unit |  |  |  |  |  |  |  |  |
Shares issued and sold (in shares) |  |  |  |  |  |  |  |  | 10,377,752
Net proceeds from company offering |  |  |  |  |  |  |  |  | $ 35,700,000
Issuance price (in usd per share) |  |  |  | $ 0.0001 |  |  |  |  |
Sale of stock, maximum offering price |  |  |  | $ 100,000,000 |  |  |  |  |
Sale of stock, commission (as a percent) |  |  |  | 3.00% |  |  |  |  |
Advanced Micro Devices, Inc | Private Placement |  |  |  |  |  |  |  |  |
Capital Unit |  |  |  |  |  |  |  |  |
Shares issued and sold (in shares) |  |  | 5,714,285 |  |  |  |  |  |
Net proceeds from company offering |  |  | $ 20,000,000.0 |  |  |  |  |  |
Stock issuance costs |  |  | $ 2,500,000 |  |  |  |  |  |
Amortization of the premium |  |  |  |  |  | $ 200,000 |  |  | $ 500,000
TD Securities (USA) LLC | ATM Offering Program |  |  |  |  |  |  |  |  |
Capital Unit |  |  |  |  |  |  |  |  |
Sale of stock, maximum offering price | $ 100,000,000 |  |  |  |  |  |  |  |
Sale of stock, commission (as a percent) | 3.00% |  |  |  |  |  |  |  |
Maximum | Shelf Registration |  |  |  |  |  |  |  |  |
Capital Unit |  |  |  |  |  |  |  |  |
Shares authorized (in shares) | $ 400,000,000 |  |  |  | $ 250,000,000 |  |  |  |

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