CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Apr. 30, 2014	Apr. 30, 2013
Allowance for Doubtful Accounts Receivable, Current	$ 240,681	$ 456,051
Preferred Stock, Par Value Per Share	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Shares Issued	0	1
Preferred Stock, Shares Outstanding	0	1
Common Stock, Par Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	42,599,869	41,958,350