Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Jul. 31, 2013
Current assets:
Cash and cash equivalents	$ 147,027	$ 151,600
Restricted cash and cash equivalents-short-term	53,298	34,988
Marketable securities	12,362	9,684
Trade accounts receivable, net of allowance for doubtful accounts of $13,759 at April 30, 2014 and $13,079 at July 31, 2013	66,075	65,078
Prepaid expenses	19,823	19,175
Deferred income tax assets, net-current portion	973	1,689
Other current assets	11,377	12,730
Total current assets	310,935	294,944
Property, plant and equipment, net	81,203	80,742
Goodwill	14,910	14,807
Other intangibles, net	1,885	1,390
Investments	10,162	9,605
Restricted cash and cash equivalents-long-term	2,763	2,767
Deferred income tax assets, net-long-term portion	14,116	20,000
Other assets	14,981	11,152
Total assets	450,955	435,407
Current liabilities:
Revolving credit loan payable	13,000	21,062
Trade accounts payable	37,398	39,323
Accrued expenses	137,163	145,432
Deferred revenue	99,245	91,227
Customer deposits	48,487	28,663
Income taxes payable	719	761
Dividends payable		1,837
Notes payable-current portion	546	535
Other current liabilities	3,987	4,829
Total current liabilities	340,545	333,669
Notes payable-long-term portion	6,422	6,624
Other liabilities	6,669	5,978
Total liabilities	353,636	346,271
Commitments and contingencies
IDT Corporation stockholders' equity:
Preferred stock, $.01 par value; authorized shares-10,000; no shares issued
Additional paid-in capital	392,416	388,533
Treasury stock, at cost, consisting of 1,698 and 1,698 shares of Class A common stock and 2,931 and 2,878 shares of Class B common stock at April 30, 2014 and July 31, 2013, respectively	(99,791)	(98,836)
Accumulated other comprehensive income	4,054	2,341
Accumulated deficit	(200,487)	(203,711)
Total IDT Corporation stockholders' equity	96,471	88,603
Noncontrolling interests	848	533
Total equity	97,319	89,136
Total liabilities and equity	450,955	435,407
Class A Common Stock [Member]
IDT Corporation stockholders' equity:
Common stock, value	33	33
Class B Common Stock [Member]
IDT Corporation stockholders' equity:
Common stock, value	$ 246	$ 243