Accumulated Other Comprehensive Income (Tables)

9 Months Ended

Apr. 30, 2015

Accumulated Other Comprehensive Income [Abstract]

Schedule of accumulated balances for each classification of other comprehensive income (loss)

	Unrealized Gain (Loss) on Available-for-Sale Securities			Foreign Currency Translation			Accumulated Other Comprehensive Income
	(in thousands)
Balance, July 31, 2014	$	(8	)	$	3,676		$	3,668
Sale of interest in Fabrix Systems Ltd.		—			102			102
Other comprehensive income (loss) attributable to IDT Corporation		12			(2,912	)		(2,900	)
Balance, April 30, 2015	$	4		$	866		$	870