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COMMON STOCK - Common Stock Reserved for Future Issuance (Details) - shares	Dec. 31, 2025	Jul. 03, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	5,982,877		41,859,552
Convertible preferred stock (all series)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	0		38,665,583
2005 Plan | Exercises of stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	1,627,097		2,298,947
2005 Plan | Warrants on common stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	168,898		15,015
2005 Plan | Future grants
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	0		880,007
2025 Plan | Exercises of stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	348,551		0
2025 Plan | Future grants
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reserved shares of common stock	3,838,331	4,204,204	0

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