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Long-term Debt - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 14 Months Ended |  |  |  |  |
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Aug. 05, 2024 USD ($) | Aug. 31, 2024 USD ($) tranche | Sep. 30, 2025 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) | Dec. 31, 2022 USD ($) $ / shares shares | Sep. 30, 2025 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) | Jul. 31, 2022 USD ($) tranche | Jan. 31, 2022 shares | Dec. 31, 2021 USD ($) $ / shares shares | Oct. 31, 2021 USD ($) tranche
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | $ 54,986,000 |  | $ 54,986,000 |  |  | $ 54,986,000 | $ 51,481,000 |  |  |  |
Long-term debt, maturity, after year five |  |  | 50,000,000.0 |  | 50,000,000.0 |  |  | $ 50,000,000.0 | $ 50,000,000.0 |  |  |  |
Capital advances, number of tranches | tranche |  |  |  |  |  |  |  |  |  | 4 |  |  | 3
Capital advances |  |  |  |  |  |  |  |  |  | $ 35,000,000.0 |  |  | $ 15,000,000.0
Prepayment of outstanding term loan |  | $ 35,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Payments of loan termination fees |  | 1,500,000 |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 0 | $ 1,346,000 | $ 0 | $ (7,289,000) |  |  |  |  |  |  |
Incremental expense |  |  |  | 800,000 |  |  |  |  |  |  |  |  |
Unamortized debt issuance costs |  |  |  | 300,000 |  |  |  |  |  |  |  |  |
Prepayment fee |  |  |  | 200,000 |  |  |  |  |  |  |  |  |
Redeemable Convertible Preferred stock warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of securities called by warrants (in shares) | shares |  |  | 9,660 |  | 9,660 |  |  | 9,660 |  |  |  |  |
Warrant exercise price (in dollars per share) | $ / shares |  |  | $ 2.59 |  | $ 2.59 |  |  | $ 2.59 |  |  |  |  |
2021 LSA Common Stock Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of securities called by warrants (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 80,357 | 53,571 |
Warrant exercise price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  | $ 2.80 |
Right to return warrants to company, cash value |  |  |  |  |  |  |  |  |  |  |  | $ 450,000 |
2022 LSA Common Stock Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 10.92 |  |  |  |  |  |
Right to return warrants to company, cash value |  |  |  |  |  |  | $ 450,000 |  |  |  |  |  |
Warrants issued during period (in shares) | shares |  |  |  |  |  |  | 41,209 |  |  |  |  |  |
Warrants exercisable (in shares) | shares |  |  |  |  |  |  | 30,907 |  |  |  |  |  |
Notes Payable | 2024 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  | $ 140,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  | 8.00% |  |  |  |  |  |  |  |  |  |  |
Minimum Trailing Six-Month Net Revenue Threshold (in millions) |  | $ 120,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Threshold, trailing six-month gross margin, minimum |  | 30.00% |  |  |  |  |  |  |  |  |  |  |
Interest expense, debt |  |  | $ 1,000,000.0 | $ 600,000 | $ 3,000,000.0 | $ 600,000 |  |  |  |  |  |  |
Capital advances, number of tranches | tranche |  | 4 |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Oberland Capital |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue participation agreement, percent of quarterly net revenue |  | 0.01% |  |  |  |  |  |  |  |  |  |  |
Revenue participation agreement, maximum annual net revenue |  | $ 100,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Revenue participation agreement, principal amount of notes |  | $ 1,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Payments for revenue participation agreement |  |  |  |  |  |  |  | $ 500,000 |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  | 130.00% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption period |  | 24 months |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  | 145.00% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption period |  | 36 months |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period Three |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption period |  | 48 months |  |  |  |  |  |  |  |  |  |  |
Redemption, internal rate of return generated |  | 12.25% |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period Four |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, redemption period |  | 60 months |  |  |  |  |  |  |  |  |  |  |
Redemption, internal rate of return generated |  | 11.75% |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period Five |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption, internal rate of return generated |  | 11.25% |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Debt Instrument, Redemption, Period Six |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption, internal rate of return generated |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | First Tranche |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from notes payable | $ 50,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Second Tranche |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  | $ 35,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Minimum Trailing Six-Month Net Revenue Threshold (in millions) |  | 80,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Third Tranche |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  | 30,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Minimum Trailing Six-Month Net Revenue Threshold (in millions) |  | $ 112,500,000 |  |  |  |  |  |  |  |  |  |  |
Threshold, trailing six-month gross margin, minimum |  | 45.00% |  |  |  |  |  |  |  |  |  |  |
Notes Payable | 2024 Notes | Fourth Tranche |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  | $ 25,000,000.0 |  |  |  |  |  |  |  |  |  |  |

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