Quarterly report pursuant to sections 13 or 15(d)

Significant Accounting Policies (Details)

v2.4.0.8
Significant Accounting Policies (Details) (USD $)
3 Months Ended 6 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2013
Oct. 31, 2012
Apr. 30, 2013
Significant Accounting Policies [Abstract]          
Restricted cash $ 265,444   $ 265,444   $ 265,173
Letter of credit interest rate 0.20%   0.20%    
Amount Reclassified From Deferred Revenue To Title Four Funds In Transit 257,378   257,378   253,883
Amount reclassified from cost of revenues to general and administrative expenses 62,250    113,250     
Stock Options [Member]
         
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities     9,433,092 5,942,931  
Warrant [Member]
         
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities     18,249,528 5,887,090  
Convertible Debt [Member]
         
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities     8,093,985 1,357,143  
Convertible debt $ 3,040,000 $ 800,000 $ 3,040,000 $ 800,000