Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 3)

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Income Taxes (Details 3) (USD $)
12 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2012
Significant components of the deferred tax assets      
Net operating loss carryforwards $ 8,211,000 $ 4,444,000  
Credits 397,000 190,000  
Start-up costs 61,000 67,000  
Accumulated Depreciation 663,000 450,000  
Other 877,000 253,000  
Net deferred tax assets 10,209,000 5,404,000  
Valuation allowance for deferred tax assets $ (10,209,000) $ (5,404,000)  
Reconciliation of incomes taxes using statutory income tax rate, compared to effective rate      
Federal tax benefit at the expected statutory rate (as a percent) 34.00% 34.00% 34.00%
State income tax, net of federal tax benefit (as a percent) (0.01%) (0.01%) (0.07%)
Loss on extinguishment of debt (as a percent)     (11.48%)
Adjustment of fair value of derivative liabilities (as a percent)     63.20%
Non-deductible expenses (as a percent) (0.45%) (0.08%) (6.63%)
Change in valuation allowance (as a percent) (33.90%) (33.93%) (81.58%)
Other (as a percent)     2.45%
Income tax benefit - effective rate (as a percent) (0.36%) (0.02%) (0.11%)