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Property and Equipment (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2021
Jan. 31, 2020
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 30,183 $ 48,932 $ 61,014 $ 97,779
Loss on disposal of fixed assets     $ (7,324) $ 0