Notes Payable - Schedule of Notes Payable (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014		Jul. 31, 2013
Debt Instrument [Line Items]
Notes payable	$ 6,624		$ 7,159
Less current portion	(271)		(535)
Notes payable-long term portion	6,353		6,624
Notes Due June 2012 [Member]
Debt Instrument [Line Items]
Notes payable		[1]	279	[1]
Secured Term Loan Due September 2015 [Member]
Debt Instrument [Line Items]
Secured term loan	$ 6,624	[2]	$ 6,880	[2]

[1] On June 24, 2009, the Company issued a promissory note in the principal amount of $1.2 million in connection with the acquisition of the 49% interest in Union Telecard Alliance, LLC that it did not own. The note bears interest at 0.76% per annum. The principal and interest are payable in thirty six equal, monthly installments that began on July 24, 2009 with the last payment on June 24, 2012. The Company has not made any payments since November 2011 due to disputes with the seller.

[2] The loan bears interest at the rate of 5.6% per annum and is payable in monthly installments of principal and interest of $0.1 million, with the last installment of $6.4 million payable on September 1, 2015. The loan is secured by a mortgage on a building in Piscataway, New Jersey.