Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Operating activities:
Net (loss) income	$ (2,908)	$ 636
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Common stock issued or to be issued for compensation	$ 1,586	1,229
Deferred tax assets		855
Changes in assets and liabilities:
Trade accounts receivable, net	$ 34	(6)
Prepaid expenses - related to IP settlements and licensing	783	2,414
Other current assets	1	$ (99)
Prepaid expenses - development agreement	(700)
Other assets	8	$ 9
Trade accounts payable	(114)	195
Accrued expenses	$ (359)	(487)
Due to IDT Corporation		37
Deferred revenue	$ (1,546)	(4,909)
Income taxes payable		(82)
Net cash used in operating activities	$ (3,215)	$ (208)
Investing activities:
Purchases of property and equipment	(56)
Net cash used in investing activities	(56)
Financing activities:
Common stock issued upon exercise of stock options	$ 1	$ 26
Sale of treasury stock		65
Net cash provided by financing activities	$ 1	91
Net decrease in cash and cash equivalents	(3,270)	(117)
Cash and cash equivalents at beginning of period	18,620	21,232
Cash and cash equivalents at end of period	$ 15,350	21,115
Supplemental schedule of noncash activities
Common stock repurchased for withholding tax purposes		348
Supplemental cash flow information
Cash paid during the period for income taxes	$ 3	$ 82