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REDEEMABLE CONVERTIBLE PREFERRED STOCK - Schedule of Significant Inputs Used in the Valuation of the Derivative Liability (Details) - Level 3 - Ayar | Jun. 30, 2026 | Dec. 31, 2025
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Volatility | Series A Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.400 | 0.400
Volatility | Series B Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.400 | 0.400
Volatility | Series C Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.400 |
Credit spread | Series A Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.345 | 0.239
Credit spread | Series B Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.345 | 0.239
Credit spread | Series C Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.345 |
Stock price | Series A Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 6.69 | 10.57
Stock price | Series B Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 6.69 | 10.57
Stock price | Series C Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 6.69 |
Expected term (in years) | Series A Derivative Liability |  |
Derivative [Line Items] |  |
Term (in years) | 2 years 8 months 12 days | 3 years 2 months 12 days
Expected term (in years) | Series B Derivative Liability |  |
Derivative [Line Items] |  |
Term (in years) | 3 years 1 month 6 days | 3 years 7 months 6 days
Expected term (in years) | Series C Derivative Liability |  |
Derivative [Line Items] |  |
Term (in years) | 4 years 9 months 18 days |
Risk-free rate | Series A Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.041 | 0.035
Risk-free rate | Series B Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.041 | 0.036
Risk-free rate | Series C Derivative Liability |  |
Derivative [Line Items] |  |
Derivative liability, measurement input | 0.041 |

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