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Supplementary Balance Sheet Information - Schedule of Accrued Expenses And Other Current Liabilities (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure Text Block Supplement [Abstract] |  |  |
Inventory purchases |  | $ 3,289,000 | $ 3,813,000
Professional fees |  | 6,124,000 | 2,617,000
Technology costs |  | 2,104 | 0
Deferred revenue |  | 0 | 733,000
Other |  | 479,000 | 301,000
Total accrued and other current liabilities | $ 10,537,000 | $ 11,996,000 | $ 7,464,000

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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