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Trade Accounts Receivable (Details) - Schedule of trade accounts receivable - USD ($)
$ in Thousands
Jul. 31, 2022
Jul. 31, 2021
Schedule Of Trade Accounts Receivable Abstract    
Trade Accounts Receivable $ 196 $ 315
Accounts Receivable - Related Party 158 113
Less Allowance for Doubtful Accounts (197) (193)
Trade Accounts Receivable, net $ 157 $ 235