XML 69 R53.htm IDEA: XBRL DOCUMENT v3.20.2
Related Party Transactions (Details) - Director - USD ($)
3 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Jul. 31, 2020
Related Party Transaction      
Net sales to related party $ 110,000 $ 111,000  
Accounts receivable from related party 5,000   $ 0
Payments to related party 92,000 $ 38,000  
Accounts payable to related party $ 0   $ 0