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Related Party Transactions (Details Textual) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2015
Jan. 31, 2014
Related Party Transactions (Textual)        
Income from IDT Corporation payments of liabilities          $ 50strp_IncomeFromPaymentsOfLiabilities