8. WARRANTS (Details) (USD $)	12 Months Ended
	Apr. 30, 2013
Warrants outstanding	374,803
December 19, 2009
Warrants outstanding	101,523
Exercise price per share warrants	$ 1.4775
Expiration date of warrants	Dec. 19, 2013
August 30, 2012
Warrants outstanding	273,280
Exercise price per share warrants	$ 2.4700
Expiration date of warrants	Aug. 30, 2018