XML 64 R42.htm IDEA: XBRL DOCUMENT v3.20.1
Inventory (Details) - USD ($)
Jan. 31, 2020
Jul. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 227,971 $ 77,782
Finished goods 633,123 285,226
Total Inventory $ 861,094 $ 363,008