TEMPORARY REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - Common stock reserved for future issuance (Details)	Jun. 30, 2025 shares
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	76,779,859
Warrants
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	107,813
Awards outstanding under the 2017 and 2007 Equity Incentive Plans
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	5,898,018
Awards outstanding under the 2024 Equity Plan
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	1,301,633
Shares available for future issuance under the 2024 Equity Incentive Plan
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	1,406,542
Shares authorized and available for future issuance
TEMPORARY REDEEMABLE PREFERRED STOCK
Total shares reserved and available for future issuance of common stock	68,065,853