Related Party Transactions (Details) - IDT [Member] - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Related Party Transaction [Line Items]
Balance at beginning of year		$ 6
Payments by IDT on behalf of the Company		464
Deferred taxes offset against IDT net operating losses
Cash repayments, net of advances		(470)
Amount due to IDT contributed to equity
Balance at end of year
Average balance during the year		$ 56