CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Operating activities:
Net (loss) income	$ (687)	$ 889
Adjustments to reconcile net (loss) income to net cash (used in ) provided by operating activities:
Common stock issued or to be issued for compensation	598	383
Deferred tax assets		755
Changes in assets and liabilities:
Trade accounts receivable, net	(2)	(17)
Prepaid expenses - related to settlements and licensing	783	1,140
Other current assets	(81)	(120)
Prepaid expenses - development agreement	(1,000)
Other assets	5	(2)
Trade accounts payable	(94)	276
Accrued expenses	(232)	(497)
Due to IDT Corporation		(6)
Deferred revenue	(1,603)	(2,278)
Income taxes payable		(82)
Net cash (used in) provided by operating activities	(2,313)	441
Financing activities
Common stock issued upon exercise of stock options		7
Net cash provided by financing activities		7
Net (decrease) increase in cash and cash equivalents	(2,313)	448
Cash and cash equivalents at beginning of period	18,620	21,232
Cash and cash equivalents at end of period	16,307	21,680
Supplemental schedule of noncash activities
Common stock withheld for payroll tax purposes		348
Supplemental cash flow information
Cash paid during the period for income taxes	$ 3	$ 82