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Equity - Stock-Based Compensation plans (Details) | Dec. 31, 2024 shares | Dec. 31, 2022 shares
--- | --- | ---
2015 Plan |  |
Stock Based Compensation Plans |  |
Ratio of shares subject to award granted | 1 |
2021 Plan |  |
Stock Based Compensation Plans |  |
Total shares reserved for issuance of common stock related to the conversion of preferred stock | 1,645,349 | 1,900,000
Ratio of shares subject to award granted |  | 1

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