Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Stockholders' Equity (Details) - Schedule of share-based compensation expense - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Share-based compensation expense $ 291 $ 208 $ 526 $ 413
Options [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Share-based compensation expense 289 205 521 407
Restricted Stocks [Member]        
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]        
Share-based compensation expense $ 2 $ 3 $ 5 $ 6