v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (Details) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
IPO Distribution Services      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers $ 18,171,176 $ 9,305,372 $ 4,111,076
Wealth Management Service      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 19,888,336 929,740 704,119
Currency Exchange Service      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers $ 16,554,599 $ 9,462,749 $ 5,326,985