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Stock-Based Compensation (Details Narrative) - USD ($)
12 Months Ended
Jul. 31, 2018
Jul. 31, 2017
Nov. 30, 2010
Number of stock options granted  
Unrecognized costs related to outstanding stock options  
2011 Stock Incentive Plan [Member]      
Maximum number of shares authorized for issuance under the plan     4,000,000