Net Loss Per Share - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Numerator: | ||||||
| Net loss | $ (9,002,000) | $ (9,438,000) | $ (25,782,000) | $ (29,470,000) | $ (39,661,000) | $ (50,332,000) |
| Deemed dividends | 0 | (305,000) | 0 | (2,724,000) | (2,724,000) | (1,941,000) |
| Net loss attributable to common stockholder | $ (9,002,000) | $ (9,743,000) | $ (25,782,000) | $ (32,194,000) | $ (42,385,000) | $ (52,273,000) |
| Denominator: | ||||||
| Weighted average shares outstanding - basic | 12,464,236 | 374,270 | 4,495,701 | 367,888 | 372,426 | 347,249 |
| Weighted average shares outstanding - diluted | 12,464,236 | 374,270 | 4,495,701 | 367,888 | 372,426 | 347,249 |
| Effect of dilutive shares | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 |
| Basic loss per share | $ (0.72) | $ (26.03) | $ (5.73) | $ (87.51) | $ (113.81) | $ (150.53) |
| Diluted loss per share | $ (0.72) | $ (26.03) | $ (5.73) | $ (87.51) | $ (113.81) | $ (150.53) |
| X | ||||||||||
- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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