Stockholders' Equity (Details) - Schedule of share-based compensation expense - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]
Stock Based Compensation Expense	$ 149	$ 113	$ 370	$ 319
Options [Member]
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]
Stock Based Compensation Expense	143	104	351	283
Restricted Stocks [Member]
Stockholders' Equity (Details) - Schedule of share-based compensation expense [Line Items]
Stock Based Compensation Expense	$ 6	$ 9	$ 19	$ 36