Basis of Presentation	9 Months Ended
Apr. 30, 2016
Basis of Presentation [Abstract]
Basis of Presentation	Note 1—Basis of Presentation The accompanying unaudited consolidated financial statements of IDT Corporation and its subsidiaries (the “Company” or “IDT”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended April 30, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending July 31, 2016. The balance sheet at July 31, 2015 has been derived from the Company’s audited financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, please refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended July 31, 2015, as filed with the U.S. Securities and Exchange Commission (“SEC”). The Company’s fiscal year ends on July 31 of each calendar year. Each reference below to a fiscal year refers to the fiscal year ending in the calendar year indicated (e.g., fiscal 2016 refers to the fiscal year ending July 31, 2016). On June 1, 2016, the Company completed a pro rata distribution of the common stock that the Company held in the Company’s subsidiary Zedge, Inc. (“Zedge”) to the Company’s stockholders of record as of the close of business on May 26, 2016 (the “Zedge Spin-Off”). The disposition of Zedge did not meet the criteria to be reported as a discontinued operation and accordingly, its assets, liabilities, results of operations and cash flows have not been reclassified. Zedge provides a content platform that enables consumers to personalize their mobile devices with free, high quality ringtones, wallpapers, home screen app icons and notification sounds. In connection with the Zedge Spin-Off, each of the Company’s stockholders received one share of Zedge Class A common stock for every three shares of the Company’s Class A common stock, and one share of Zedge Class B common stock for every three shares of the Company’s Class B common stock, held of record as of the close of business on May 26, 2016. The Company received a legal opinion that the Zedge Spin-Off should qualify as a tax-free transaction for U.S. federal income tax purposes. In August 2015, the Company’s Board of Directors approved a plan to reorganize the Company into three separate entities by spinning off two business units to its stockholders. The three separate companies are expected to consist of (1) IDT Telecom, (2) Zedge and (3) other holdings. The reorganization and the specific components are subject to change and both internal and third party contingencies, and must receive final approval from the Company’s Board of Directors and certain third parties. The Company continues to advance the effort on the remainder of the reorganization.

Note 1—Basis of Presentation

The accompanying unaudited consolidated financial statements of IDT Corporation and its subsidiaries (the “Company” or “IDT”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended April 30, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending July 31, 2016. The balance sheet at July 31, 2015 has been derived from the Company’s audited financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements. For further information, please refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended July 31, 2015, as filed with the U.S. Securities and Exchange Commission (“SEC”).

The Company’s fiscal year ends on July 31 of each calendar year. Each reference below to a fiscal year refers to the fiscal year ending in the calendar year indicated (e.g., fiscal 2016 refers to the fiscal year ending July 31, 2016).

On June 1, 2016, the Company completed a pro rata distribution of the common stock that the Company held in the Company’s subsidiary Zedge, Inc. (“Zedge”) to the Company’s stockholders of record as of the close of business on May 26, 2016 (the “Zedge Spin-Off”). The disposition of Zedge did not meet the criteria to be reported as a discontinued operation and accordingly, its assets, liabilities, results of operations and cash flows have not been reclassified. Zedge provides a content platform that enables consumers to personalize their mobile devices with free, high quality ringtones, wallpapers, home screen app icons and notification sounds. In connection with the Zedge Spin-Off, each of the Company’s stockholders received one share of Zedge Class A common stock for every three shares of the Company’s Class A common stock, and one share of Zedge Class B common stock for every three shares of the Company’s Class B common stock, held of record as of the close of business on May 26, 2016. The Company received a legal opinion that the Zedge Spin-Off should qualify as a tax-free transaction for U.S. federal income tax purposes.

In August 2015, the Company’s Board of Directors approved a plan to reorganize the Company into three separate entities by spinning off two business units to its stockholders. The three separate companies are expected to consist of (1) IDT Telecom, (2) Zedge and (3) other holdings. The reorganization and the specific components are subject to change and both internal and third party contingencies, and must receive final approval from the Company’s Board of Directors and certain third parties. The Company continues to advance the effort on the remainder of the reorganization.