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Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies (Narrative) (Details)

v3.3.0.814
Significant Accounting Policies (Narrative) (Details) - USD ($)
6 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Apr. 30, 2015
Significant Accounting Policies [Abstract]      
Restricted cash $ 1,122,485   $ 1,122,485
Amount reclassified from cost of revenues to marketing expense   $ 29,371  
Cash and Cash Equivalents [Line Items]      
Cash, FDIC insured amount 250,000    
Institution One [Member]      
Cash and Cash Equivalents [Line Items]      
Amount of cash balance uninsured by FDIC 657,522    
Institution Two [Member]      
Cash and Cash Equivalents [Line Items]      
Amount of cash balance uninsured by FDIC $ 941,812    
Stock Options [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities 16,857,313 13,476,412  
Warrant [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities 28,871,757 44,007,963  
Convertible Debt [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities 1,207,143 1,307,142  
Convertible debt $ 650,000 $ 750,000