Related Party Transactions (Details) (Transition Service Agreement [Member], IDT [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Transition Service Agreement [Member] | IDT [Member]
Related Party Transaction, Due from (to) Related Party [Abstract]
Included in direct cost of revenues	$ 12	$ 15	$ 39	$ 40
Included in selling, general and administrative expenses	$ 105	$ 162	$ 698	$ 478