Income Taxes (Tables)

12 Months Ended

Jul. 31, 2015

Income Taxes [Abstract]

Deferred Tax Assets And Liabilities

	July 31,
	2015		2014
Net operating loss carry-forward	$	21,330,000	$	25,740,000
Stock options and warrants		2,570,000		1,720,000
Other temporary differences		70,000		310,000
Total deferred tax assets		23,970,000		27,770,000
Valuation allowance for deferred tax assets		(23,970,000)		(27,770,000)
Net deferred tax assets	$	—	$	—

Reconciliation Of Effective Tax Rate, Percentage

	2015		2014
Federal tax benefit at the expected statutory rate	34.0	%	34.0	%
State income tax, net of federal tax benefit	3.7		3.4
Expired net operating loss carryforwards	(4.5)		(0.8)
Other	(2.2)		(8.4)
Valuation allowance	(31.0)		(28.2)
Income tax benefit - effective rate	0.0	%	0.0	%