v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Major Vendor (Details) - item
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Research and development expenditures | Supplier Concentration Risk          
Concentration          
Number of major vendors   2   3  
Research and development expenditures | Supplier Concentration Risk | Vendor One          
Concentration          
Concentration Risk (as a percent) 34.00% 31.00% 26.00% 21.00%  
Research and development expenditures | Supplier Concentration Risk | Vendor Two          
Concentration          
Concentration Risk (as a percent) 17.00% 11.00% 13.00% 17.00%  
Research and development expenditures | Supplier Concentration Risk | Vendor Three          
Concentration          
Concentration Risk (as a percent) 13.00%   12.00% 10.00%  
Accounts payable and accrued expense | Lender Concentration Risk [Member] | Major vendors, combined          
Concentration          
Concentration Risk (as a percent)     14.00%   6.00%