Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Operating activities:
Net loss	$ (36,231)	$ (4,772)
Adjustments to reconcile net loss to net cash used in operating activities:
Common stock issued for compensation	5,188	2,191
Stock-based compensation	290
Amortization of debt discounts	2,001
Allowance for doubtful accounts	7
Depreciation		38
Changes in assets and liabilities:
Trade accounts receivable, net	(35)	43
Due from settlement		(65)
Inventory	(1,026)
Assets held for sale - Intellectual Property Business	(33)
Prepaid expenses - related to IP settlements and licensing		783
Prepaid expenses and other current assets	801	44
Prepaid expenses - development agreement		(300)
Other assets	(60)	9
Trade accounts payable	4,554	(68)
Accrued expenses	(126)	(392)
FCC consent decree payable	7,000
Liabilities held for sale - Intellectual Property Business	329
Deferred revenue	42	(1,577)
Income taxes payable	(225)
Settlement payable - stockholders	7,200
Net cash used in operating activities	(10,324)	(4,066)
Investing activities:
Prepaid expenses - related to sale of Spectrum business to Verizon	(2,856)
Prepaid expenses - related to sale of IP business to IDT	(1,054)
Purchases of property and equipment		(1,383)
Net cash used in investing activities	(3,910)	(1,383)
Financing activities:
Proceeds from loans payable	17,500
Costs related to loans payable	(80)
Common stock issued upon exercise of stock options	8	1
Net cash provided by financing activities	17,428	1
Net increase (decrease) in cash and cash equivalents	3,194	(5,448)
Cash and cash equivalents at beginning of period	11,361	18,620
Cash and cash equivalents at end of period	14,555	13,172
Supplemental schedule of noncash activities
Reclassification of prepaid marketing to inventory	643
Issuance of warrants with loans payable	4,040
Exercises of warrants reducing loans payable	5,125
Supplemental cash flow information
Cash paid during the period for interest	139
Cash paid during the period for income taxes	$ 10	$ 8