Revolving Credit Loan Payable	12 Months Ended
Jul. 31, 2016
Revolving Credit Loan Payable [Abstract]
Revolving Credit Loan Payable	Note 10—Revolving Credit Loan Payable The Company’s subsidiary, IDT Telecom, Inc., entered into a credit agreement, dated July 12, 2012, with TD Bank, N.A. for a line of credit facility for up to a maximum principal amount of $25.0 million. IDT Telecom may use the proceeds to finance working capital requirements, acquisitions and for other general corporate purposes. The line of credit facility is secured by primarily all of IDT Telecom’s assets. The principal outstanding bears interest per annum, at the option of IDT Telecom, at either (a) the U.S. Prime Rate less 125 basis points, or (b) the LIBOR rate adjusted by the Regulation D maximum reserve requirement plus 150 basis points. Interest is payable monthly and all outstanding principal and any accrued and unpaid interest is due on the maturity date. In January 2016, the maturity date was extended to January 31, 2018. At July 31, 2016 and 2015, there were no amounts outstanding under the facility. The Company intends to borrow under the facility from time to time. IDT Telecom pays a quarterly unused commitment fee of 0.375% per annum on the average daily balance of the unused portion of the $25.0 million commitment. IDT Telecom is required to comply with various affirmative and negative covenants as well as maintain certain financial targets and ratios during the term of the line of credit, including IDT Telecom may not pay any dividend on its capital stock and IDT Telecom’s aggregate loans and advances to affiliates or subsidiaries may not exceed $110.0 million. At July 31, 2016 and 2015, there were no amounts utilized for letters of credit under the line of credit, IDT Telecom was in compliance with all of the covenants, and IDT Telecom’s aggregate loans and advances to affiliates and subsidiaries was $91.1 million and $90.1 million, respectively.

Revolving Credit Loan Payable

12 Months Ended

Jul. 31, 2016

Revolving Credit Loan Payable [Abstract]

Note 10—Revolving Credit Loan Payable

The Company’s subsidiary, IDT Telecom, Inc., entered into a credit agreement, dated July 12, 2012, with TD Bank, N.A. for a line of credit facility for up to a maximum principal amount of $25.0 million. IDT Telecom may use the proceeds to finance working capital requirements, acquisitions and for other general corporate purposes. The line of credit facility is secured by primarily all of IDT Telecom’s assets. The principal outstanding bears interest per annum, at the option of IDT Telecom, at either (a) the U.S. Prime Rate less 125 basis points, or (b) the LIBOR rate adjusted by the Regulation D maximum reserve requirement plus 150 basis points. Interest is payable monthly and all outstanding principal and any accrued and unpaid interest is due on the maturity date. In January 2016, the maturity date was extended to January 31, 2018. At July 31, 2016 and 2015, there were no amounts outstanding under the facility. The Company intends to borrow under the facility from time to time. IDT Telecom pays a quarterly unused commitment fee of 0.375% per annum on the average daily balance of the unused portion of the $25.0 million commitment. IDT Telecom is required to comply with various affirmative and negative covenants as well as maintain certain financial targets and ratios during the term of the line of credit, including IDT Telecom may not pay any dividend on its capital stock and IDT Telecom’s aggregate loans and advances to affiliates or subsidiaries may not exceed $110.0 million. At July 31, 2016 and 2015, there were no amounts utilized for letters of credit under the line of credit, IDT Telecom was in compliance with all of the covenants, and IDT Telecom’s aggregate loans and advances to affiliates and subsidiaries was $91.1 million and $90.1 million, respectively.