Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Stockholders' Equity (Details) - Schedule of share-based compensation expense - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Apr. 30, 2018
Apr. 30, 2017
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense $ 204 $ 209 $ 617 $ 601
Options [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense 202 204 609 586
Restricted Stocks [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Stock Based Compensation Expense $ 2 $ 5 $ 8 $ 15