Quarterly report [Sections 13 or 15(d)]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Major Vendor (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Major Vendor (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Research and development expenditures | Supplier Concentration Risk | Vendor One          
Concentration          
Concentration Risk (as a percent) 31.00% 22.00% 21.00% 23.00%  
Research and development expenditures | Supplier Concentration Risk | Vendor Two          
Concentration          
Concentration Risk (as a percent) 11.00% 13.00% 17.00% 13.00%  
Research and development expenditures | Supplier Concentration Risk | Vendor Three          
Concentration          
Concentration Risk (as a percent)     10.00% 11.00%  
Accounts payable and accrued expense | Lender Concentration Risk | Major vendors, combined          
Concentration          
Concentration Risk (as a percent)     80.00%   61.00%