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Property and Equipment (Tables)
12 Months Ended
Jul. 31, 2021
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment
   Useful lives  2021   2020 
Telecom equipment & software  1-7 years  $1,345   $1,064 
Less: accumulated depreciation      (816)   (633)
Net–property and equipment     $529   $431