v3.26.1
INCOME TAX AND DEFERRED TAX ASSETS - Reconciliation of the statutory income tax rate and the effective income tax rate (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of the statutory income tax rate and the Company's effective income tax      
PRC statutory income tax rate 25.00%    
China      
Reconciliation of the statutory income tax rate and the Company's effective income tax      
Statutory income tax rate 16.50% 16.50% 16.50%
PRC statutory income tax rate 25.00% 25.00% 25.00%
Effect of valuation and deferred tax adjustments 0.00% 0.00% (1.65%)
Effective rate 0.00% 0.00% (1.65%)
U.K      
Reconciliation of the statutory income tax rate and the Company's effective income tax      
Statutory income tax rate 19.00% 19.00% 19.00%
Valuation allowance recognized with respect to the loss (19.00%) (19.00%) (19.00%)
Effect of valuation and deferred tax adjustments 0.00% 0.00% 0.00%
Effective rate 0.00% 0.00% 0.00%
Hong Kong | China      
Reconciliation of the statutory income tax rate and the Company's effective income tax      
Valuation allowance recognized with respect to the loss (16.50%) (16.50%) (16.50%)
PRC | China      
Reconciliation of the statutory income tax rate and the Company's effective income tax      
Valuation allowance recognized with respect to the loss (25.00%) (25.00%) (25.00%)