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Goodwill and Other Intangibles Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Jul. 31, 2020
Finite-Lived Intangible Assets      
Amortization of intangible assets $ 155,000 $ 167,000  
Amortization expense for remainder of current fiscal year 432,000    
Indefinite-lived trademarks $ 376,000    
Goodwill impairment loss     $ 0