Income Taxes (Tables)

12 Months Ended

Jul. 31, 2013

Income Tax Disclosure [Abstract]

Deferred income taxes

Deferred income taxes consist of the following:

	July 31,
	2013			2012
Net operating loss carryforwards	$	87,541,552		$	85,428,939
Other temporary differences		800,989			627,656
Total Deferred Tax Assets		88,342,541			86,056,595
Valuation Allowance		(88,098,860	)		(85,579,584	)
Deferred Tax Liabilities
Intangible assets		(386,320	)		(378,672	)
Other temporary differences		142,639			(98,339	)
Total Deferred Tax Liabilities		(243,681	)		(477,011	)
Net Deferred Income Taxes	$	—		$	—

Reconciliation of effective tax rate

A reconciliation of the United States Federal Statutory rate to the Company’s effective tax rate for the years ended July 31, 2013, 2012 and 2011 is as follows:

	2013			2012			2011
Federal statutory rate		(34.0	)%		(34.0	)%		(34.0	)%
Increase (decrease) in income taxes resulting from:
Imputed interest income on intercompany receivables from foreign subsidiaries		6.0			5.0			3.0
Non-deductible or non-taxable items		13.0			4.0			(4.0	)
Change in Canadian NOL carryforwards due to future tax rate changes		0.0			0.0			20.0
Other temporary differences		(14.0	)		18.0			18.0
Change in valuation allowance		29.0			(3.0	)		(3.0	)
Effective tax rate		—	%		—	%		—	%