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) - Major vendors, combined
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Research and development expenditures | Supplier Concentration Risk      
Concentration      
Concentration Risk (as a percent) 39.00% 46.00%  
Accounts payable and accrued expense | Lender Concentration Risk [Member]      
Concentration      
Concentration Risk (as a percent) 5.00%   4.00%