v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Short-term investments, Impairment of long lived assets and Employee defined contribution plan (Details) - USD ($)
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Short-term investments      
Shortterm investments $ 0   $ 0
Impairment of long lived assets      
Impairment loss 0 $ 0  
Employee defined contribution plan      
Employee benefit expenses $ 998,910 $ 947,916