v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of revenue (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of revenue    
Total revenue $ 92,700 $ 479,799 [1]
U.S. domestic market    
Disaggregation of revenue    
Total revenue 79,530 464,883
Overseas market    
Disaggregation of revenue    
Total revenue $ 13,170 $ 14,916
[1] Certain reclassifications have been made to the financial statements for the period ended March 31, 2024, to conform to the presentation for the period ended March 31, 2025, with no effect on previously reported net income (loss). See Note 6 – Discontinued Operations.