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Liquidity & Going Concern Uncertainty (Details Narrative) - USD ($)
Oct. 31, 2019
Jul. 31, 2019
Oct. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Cumulative net loss $ (124,603,000) $ (123,478,000)  
Cash and cash equivalents 904,000 $ 398,000 $ 776,000
Accounts payable and accrued liabilities 877,000    
Long term debt