Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Reconciliation of the numerator and denominator used in computing basic and diluted net loss per share (Details)

v2.4.0.6
Summary of Significant Accounting Policies - Reconciliation of the numerator and denominator used in computing basic and diluted net loss per share (Details) (USD $)
3 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Summary Of Significant Accounting Policies - Reconciliation Of Numerator And Denominator Used In Computing Basic And Diluted Net Loss Per Share Details    
Loss (numerator) $ (975,717) $ (853,957)
Shares (denominator) 10,703,309 10,394,613
Net loss per share, basic $ (0.09) $ (0.08)
Effect of dilutive securities – stock options      
Effect of dilutive securities – warrants      
Loss (numerator) $ (975,717) $ (853,957)
Shares (denominator) 10,703,309 10,394,613
Net loss per share, diluted $ (0.09) $ (0.08)