Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details) - Schedule of share-based compensation expense

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Stockholders' Equity (Details) - Schedule of share-based compensation expense - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2017
Apr. 30, 2016
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense $ 209 $ 149 $ 601 $ 370
Options [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense 204 143 586 351
Restricted Stocks [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense $ 5 $ 6 $ 15 $ 19