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8. WARRANTS (Details Narrative)
3 Months Ended 9 Months Ended
Jan. 31, 2016
$ / shares
shares
Jan. 31, 2016
$ / shares
shares
Warrants and Rights Note Disclosure [Abstract]    
Warrants issued 0 0
Warrants exercised 0 0
Warrants outstanding 273,280 273,280
Warrant exercise price | $ / shares $ 2.47 $ 2.47
Warrants exercisable expiration date   Aug. 30, 2018