Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Jul. 31, 2014

Accumulated Other Comprehensive Income Loss [Abstract]

Schedule of Accumulated Balances for Each Classification of Other Comprehensive Income (Loss)

in thousands)	Unrealized gain (loss) on available-for- sale securities			Foreign currency translation			Accumulated other comprehensive income (loss)
Balance at July 31, 2011	$	(4	)	$	3,031		$	3,027
Genie Spin-Off		—			(438	)		(438	)
Other comprehensive loss attributable to IDT Corporation		4			(2,391	)		(2,387	)
Balance at July 31, 2012		—			202			202
Other comprehensive income attributable to IDT Corporation		—			2,139			2,139
Balance at July 31, 2013		—			2,341			2,341
Other comprehensive income attributable to IDT Corporation		(8	)		1,335			1,327
BALANCE AT JULY 31, 2014	$	(8	)	$	3,676		$	3,668