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Quarterly report pursuant to sections 13 or 15(d)

Significant Accounting Policies (Details)

v2.4.0.8
Significant Accounting Policies (Details) (USD $)
9 Months Ended 9 Months Ended
Jan. 31, 2014
Apr. 30, 2013
Jan. 31, 2014
Stock Options [Member]
Jan. 31, 2013
Stock Options [Member]
Jan. 31, 2014
Warrant [Member]
Jan. 31, 2013
Warrant [Member]
Jan. 31, 2014
Convertible Debt [Member]
Jan. 31, 2013
Convertible Debt [Member]
Significant Accounting Policies [Abstract]                
Restricted cash $ 265,579 $ 265,173            
Letter of credit interest rate 0.20%              
Amount Reclassified From Deferred Revenue To Title Four Funds In Transit 235,311 253,883            
Amount reclassified from cost of revenues to general and administrative expenses 113,250              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                
Antidilutive securities     9,583,086 6,880,467 19,196,635 7,216,522 8,093,985 1,357,143
Convertible debt             $ 2,240,000 $ 800,000