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Trade Accounts Receivable (Details) - Schedule of trade accounts receivable - USD ($) $ in Thousands | Jul. 31, 2022 | Jul. 31, 2021
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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

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