Annual report pursuant to Section 13 and 15(d)

14. EARNINGS PER SHARE (Details)

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14. EARNINGS PER SHARE (Details) - USD ($)
3 Months Ended 12 Months Ended
Apr. 30, 2015
Jan. 31, 2015
Oct. 31, 2014
Jul. 31, 2014
Apr. 30, 2014
Jan. 31, 2014
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2013
Earnings Per Share [Abstract]                      
Net loss $ (4,020,389) $ (1,458,050) $ (2,864,443) $ (1,584,824) $ (16,470,811) $ (458,772) $ (5,658,070) $ (4,666,367) $ (9,927,706) $ (27,254,020) $ (1,598,102)
Basic weighted average number of shares outstanding                 704,327,656 583,219,665 440,954,850
Diluted weighted average number of shares outstanding                 704,327,656 583,219,665 440,954,850
Basic and diluted loss per share $ (.01) $ (0.00) $ (0.01) $ (0.00) $ (.03) $ 0.00 $ (.01) $ (.01) $ (.01) $ (0.05) $ 0.00