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v3.25.3

Debt - Narrative (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 27 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 USD ($) installment | May 31, 2024 | Feb. 28, 2023 installment | Sep. 30, 2020 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Jun. 30, 2024 USD ($) | May 01, 2024 | Mar. 01, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Sep. 24, 2020 USD ($) shares
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal payment number of installment | installment |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | $ 174,000 | $ 179,000 |  |  |  |  |  |  |
Loss on extinguishment |  |  |  |  |  |  | $ 527,000 | 0 |  |  |  |  |  |  |
CRG Term Loan Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  | $ 60,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Proceeds from long term debt |  |  |  | 50,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Unused borrowing capacity |  |  |  | $ 10,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  | 12.50% | 12.50% |  |  |  |  |  |  |  | 13.50% |  |  |
Effective percentage |  |  | 15.70% |  |  |  |  |  |  |  |  | 16.80% |  |  |
Final maturity extension period |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption fee, percent |  |  |  |  | 8.00% |  | 8.00% |  |  |  | 10.00% |  |  |  |
Minimum annual net revenue |  |  |  |  |  |  |  |  | $ 45,000,000 |  |  |  |  |  |
Backend fee | $ 4,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  | $ 0 | $ 100,000 | $ 100,000 | 200,000 |  |  |  |  |  |  |
Interest expense | 1,400,000 |  |  |  | $ 0 | $ 2,200,000 | $ 3,700,000 | $ 6,600,000 |  |  |  |  |  |  |
Repayment of debt | 61,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal | 56,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
CRG Term Loan Agreement | Series B Redeemable Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Backend fee |  |  |  | $ 1,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 346,823
Warrant liability, noncurrent |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000
CRG Term Loan Agreement | Payment In Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 8.50% | 7.50% |
CRG Term Loan Agreement | Payment in Kind (PIK) Note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 5.00% |
PIK increase to principal |  |  |  |  |  |  |  |  |  | $ 6,000,000.0 |  |  |  |  |
MidCap Agreement | Revolver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective percentage |  |  |  |  | 11.50% |  | 11.50% |  |  |  |  |  |  |  |
Principal payment number of installment | installment | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Backend fee | $ 1,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  | $ 100,000 |  | $ 200,000 |  |  |  |  |  |  |  |
Interest expense |  |  |  |  | $ 1,600,000 |  | $ 2,100,000 |  |  |  |  |  |  |  |
Provision for term loan facility | $ 60,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment fee, percent | 0.02 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual administrative fee payable, percent | 0.0025 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | Revolver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unused line fee payable, percent | 0.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | First Year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment fee, percent | 0.030 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | Second Year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment fee, percent | 0.020 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | Third Year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment fee, percent | 0.010 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | Thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment fee, percent | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | SOFR Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest at floating rate | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | SOFR Rate | Revolver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest at floating rate | 3.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | SOFR Floor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest at floating rate | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
MidCap Agreement | Mid Term Note | SOFR Floor | Revolver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest at floating rate | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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