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Long-Term Investment (Details) - USD ($)
Oct. 31, 2022
Jul. 31, 2022
May 31, 2022
Apr. 30, 2022
Long-Term Investment (Details) [Line Items]        
Investment $ 275,000      
Equity interest 0.73% 0.90%    
Armstrong [Member]        
Long-Term Investment (Details) [Line Items]        
Equity interest 0.90%      
Solarever [Member]        
Long-Term Investment (Details) [Line Items]        
Investment   $ 185,000   $ 2,000,000
Equity interest   0.49%   5.25%
Armstrong [Member]        
Long-Term Investment (Details) [Line Items]        
Investment $ 151,294 $ 150,000 $ 2,000,000  
Equity interest     12.00%