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INCOME TAXES - Tax rates (Details) - USD ($)
1 Months Ended 12 Months Ended 36 Months Ended
Apr. 30, 2019
Dec. 31, 2021
Dec. 31, 2021
INCOME TAXES      
Corporate tax rate     $ 23
Preferred company tax rate   7.50%  
ATM Inc | United States      
INCOME TAXES      
Corporate tax rate   $ 35  
Preferred company tax rate   21.00%  
ATM KK | Japan      
INCOME TAXES      
Corporate tax rate   $ 23.2  
Effective statutory tax rate, large companies 19.00% 30.62%  
Effective statutory tax rate, small companies   33.60%  
Effective statutory special tax rate, small companies   0.15%  
Effective statutory special tax rate, medium companies   15.00%