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Income (Loss) Per Common Share (Details Narrative) - shares
3 Months Ended 9 Months Ended
Apr. 30, 2016
Apr. 30, 2017
Apr. 30, 2016
Earnings Per Share [Abstract]      
Number of antidilutive shares 9,862,858    
Computation of basic net loss per common share   13,409,795 18,946,821