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BUSINESS ACQUISITION AND RERVERSE RECAPITALIZATION - Shares issued (Details) - shares
Oct. 01, 2024
Dec. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
Dec. 31, 2023
BUSINESS ACQUISITION AND RERVERSE RECAPITALIZATION          
Ordinary shares outstanding 29,411,765 30,752,370 25,555,096 29,411,765 29,411,765
Conversion of original Baird Medical Investment Holdings Limited Shareholders ordinary shares 20,588,236        
Total number of Series A convertible preferred shares as of closing of PIPE transactions   290,000 290,000    
Series A Preferred Shares          
BUSINESS ACQUISITION AND RERVERSE RECAPITALIZATION          
Total number of Series A convertible preferred shares as of closing of PIPE transactions       290,000  
ExcelFin Acquisition Corp.          
BUSINESS ACQUISITION AND RERVERSE RECAPITALIZATION          
Conversion of original Baird Medical Investment Holdings Limited Shareholders ordinary shares 20,588,236        
Conversion of SPAC Sponsor ordinary shares 4,400,000        
Conversion of working capital loan ordinary shares 278,406        
Conversion of public shareholders ordinary shares 288,454        
Total number of ordinary shares as of closing of the Reverse Recapitalization 25,555,096