Revolving Credit Facility	6 Months Ended
Jan. 31, 2018
Revolving Credit Facility [Abstract]
Revolving Credit Facility	Note 8—Revolving Credit Facility The Company’s subsidiary, IDT Telecom, 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. The credit agreement was amended as of January 31, 2018. 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 125 basis points. Interest is payable monthly and all outstanding principal and any accrued and unpaid interest is due on the maturity date of January 31, 2020. At January 31, 2018 and July 31, 2017, 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 0.325% 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 restrictions on dividend payments on IDT Telecom capital stock and restrictions on IDT Telecom’s aggregate loans and advances to affiliates or subsidiaries.

Note 8—Revolving Credit Facility

The Company’s subsidiary, IDT Telecom, 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. The credit agreement was amended as of January 31, 2018. 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 125 basis points. Interest is payable monthly and all outstanding principal and any accrued and unpaid interest is due on the maturity date of January 31, 2020. At January 31, 2018 and July 31, 2017, 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 0.325% 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 restrictions on dividend payments on IDT Telecom capital stock and restrictions on IDT Telecom’s aggregate loans and advances to affiliates or subsidiaries.