Credit Facility	12 Months Ended
Mar. 29, 2015
Line of Credit Facility [Abstract]
Credit Facility	Credit Facility On June 13, 2011, the Company entered into a Master Repurchase Agreement (the Repurchase Agreement) with Bank of America, N.A. (Bank of America), pursuant to which the Company had the right, subject to the terms and conditions of the Repurchase Agreement, to sell to Bank of America up to 1,431 shares of Class A preferred shares of one of its wholly-owned subsidiaries (the Subsidiary), in one or more transactions prior to June 13, 2012, for an aggregate purchase price of $135 million in cash. Pursuant to the Repurchase Agreement, to the extent it sells any such shares to Bank of America, the Company will be obligated to repurchase from Bank of America and Bank of America will be obligated to resell to the Company, those preferred shares for the aggregate purchase price paid by Bank of America. On May 17, 2012, the Company entered into an amendment to the Repurchase Agreement which, among other things, extended the availability of the transactions under the Repurchase Agreement until December 13, 2012. On December 4, 2012, the Company entered into another amendment to the Repurchase Agreement which, among other things, extended the availability of the transactions under the Repurchase Agreement until February 14, 2013. Related to the termination of the planned acquisition of PLX, the Company's management determined that it would be in the best interest of IDT to allow the Repurchase Agreement and the related IDT Agreement with Bank of America to lapse undrawn. As a result, the Repurchase Agreement was allowed to lapse undrawn on February 14, 2013. The related IDT Agreement expired as of the same date. Associated with the Repurchase Agreement, the Company had approximately $2.5 million in remaining unamortized financing costs which were originally recorded as other current assets. The Company recognized these remaining financing costs in fiscal 2013 as selling, general and administrative expense.

Credit Facility

On June 13, 2011, the Company entered into a Master Repurchase Agreement (the Repurchase Agreement) with Bank of America, N.A. (Bank of America), pursuant to which the Company had the right, subject to the terms and conditions of the Repurchase Agreement, to sell to Bank of America up to 1,431 shares of Class A preferred shares of one of its wholly-owned subsidiaries (the Subsidiary), in one or more transactions prior to June 13, 2012, for an aggregate purchase price of $135 million in cash. Pursuant to the Repurchase Agreement, to the extent it sells any such shares to Bank of America, the Company will be obligated to repurchase from Bank of America and Bank of America will be obligated to resell to the Company, those preferred shares for the aggregate purchase price paid by Bank of America. On May 17, 2012, the Company entered into an amendment to the Repurchase Agreement which, among other things, extended the availability of the transactions under the Repurchase Agreement until December 13, 2012. On December 4, 2012, the Company entered into another amendment to the Repurchase Agreement which, among other things, extended the availability of the transactions under the Repurchase Agreement until February 14, 2013.

Related to the termination of the planned acquisition of PLX, the Company's management determined that it would be in the best interest of IDT to allow the Repurchase Agreement and the related IDT Agreement with Bank of America to lapse undrawn. As a result, the Repurchase Agreement was allowed to lapse undrawn on February 14, 2013. The related IDT Agreement expired as of the same date. Associated with the Repurchase Agreement, the Company had approximately $2.5 million in remaining unamortized financing costs which were originally recorded as other current assets. The Company recognized these remaining financing costs in fiscal 2013 as selling, general and administrative expense.