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Common stock and Stock-Based Compensation - Summary Of Company's RSU Activity Issued (Details) - $ / shares | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross |  | 21,329,457 | 15,141,280
2011 Amended Plan [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross, Beginning Balance | 4,655,274 | 4,916,829 | 137,909
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross | 1,347,536 |  | 10,929,820
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares |  | (254,555) | (150,900)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares |  |  | (6,000,000)
Share based Compensation Arrangement By Share based Payment Award Options Non vested Options Expired Number Of Shares |  | (7,000) |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross, Ending Balance |  | 4,655,274 | 4,916,829
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price ,Beginning Balance | $ 1.19 | $ 1.18 | $ 15.28
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value |  |  | 0.6
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value |  | 0.88 | 1.98
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value |  |  | 0.44
Share based Compensation Arrangement By Share based Payment Award Options Non vested Options Expired Weighted Average Grant Date Fair Value |  | 0.82 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price ,Ending Balance |  | $ 1.19 | $ 1.18

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