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Redeemable Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2023
Redeemable Convertible Preferred Stock |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 50.00% |  |  |
Percentage Of Redemption Amount Value | 15.00% |  |  |
Cash and Cash Equivalents, at Carrying Value | $ 50,237 | $ 24,001 | $ 68,640 | $ 3,213
Maximum [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 50.00% |  |  |
Minimum [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Cash and Cash Equivalents, at Carrying Value | $ 225,000 |  |  |
Two Thousand Twenty Two P2P Note [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Amount For Raised Of Additional Notes |  |  |  | 9,400
Proceeds Of Common Right Offering |  |  |  | 100
Pull Through Exchange In Incremental Value To Investors |  |  |  | $ 30,600
IPO [Member] | Maximum [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Gross Proceeds From IPO | $ 150,000 |  |  |
Series B Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Dividends Payable, Amount Per Share | $ 0.0552 |  |  |
Series C Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Dividends Payable, Amount Per Share | 0.3812 |  |  |
Series Seed Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 0.3456 |  |  |
Series A Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 0.696 |  |  |
Series B Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 0.69 |  |  |
Series C Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 4.7653 |  |  |
Series D Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 10.4425 |  |  |
Series D 1 Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 8.354 |  |  |
Series D 2 Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 4.9717 |  |  |
Series D Exchange Shadow Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | 10.4425 |  |  |
Series D 1 Exchange Preferred Stock [Member] |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |
Preferred Stock Issue Price | $ 8.354 |  |  |

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