Schedule of Stockholders' Equity Note, Warrant Liability (Details) (USD $)	6 Months Ended
	Oct. 31, 2013
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 1	$ 93,057
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 2	2,026,944
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 3	0
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 4	0
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 5	(93,057)
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 6	(1,753,368)
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 7	0
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 8	(180,519)
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 9	0
Common Stock Schedule Of Stockholders' Equity Note, Warrant Liability 10	$ 93,057