Annual report pursuant to Section 13 and 15(d)

Income Taxes (Schedule of Defered Income Tax Assets and Liabilities) (Details)

v3.5.0.2
Income Taxes (Schedule of Defered Income Tax Assets and Liabilities) (Details) - USD ($)
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2014
Deferred tax assets:      
Net operating loss $ 8,271,894 $ 7,487,076  
Allowance for doubtful accounts 26,793 21,416  
Intangible assets 249,099 304,062  
Deferred rent 11,678 2,872  
Stock-based compensation 694,900 580,672  
Contributions carryforward 93 93  
Total deferred tax assets 9,254,457 8,396,191  
Deferred tax liabilities:      
Property and equipment (185,683) (155,991)  
Total deferred tax liabilities (185,683) (155,991)  
Deferred tax assets, net 9,068,774 8,240,200  
Valuation allowance:      
Valuation allowance (9,068,774) (8,240,200) $ (6,664,215)
Net deferred tax asset