Annual report pursuant to Section 13 and 15(d)

15. DERIVATIVE LIABILITY (Details - assumptions)

v3.2.0.727
15. DERIVATIVE LIABILITY (Details - assumptions) - USD ($)
12 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]      
Risk-free interest rate 1.43% 0.00% 0.00%
Expected dividend yield 0.00% 0.00% 0.00%
Expected lives 5 years    
Expected volatility 142.00% 0.00% 0.00%
Number of warrants classified as liability 3,487,271 0 0
Loss on warrant liability $ 492,049 $ 0 $ 0