Schedule of Agreements by Year (Details)	3 Months Ended
	Jul. 31, 2015 USD ($)
Commitments Schedule Of Agreements By Year 1	$ 59,689
Commitments Schedule Of Agreements By Year 2	416,090
Commitments Schedule Of Agreements By Year 3	475,779
Commitments Schedule Of Agreements By Year 4	79,585
Commitments Schedule Of Agreements By Year 5	502,641
Commitments Schedule Of Agreements By Year 6	582,226
Commitments Schedule Of Agreements By Year 7	79,585
Commitments Schedule Of Agreements By Year 8	480,018
Commitments Schedule Of Agreements By Year 9	559,603
Commitments Schedule Of Agreements By Year 10	79,585
Commitments Schedule Of Agreements By Year 11	481,545
Commitments Schedule Of Agreements By Year 12	561,130
Commitments Schedule Of Agreements By Year 13	0
Commitments Schedule Of Agreements By Year 14	200,644
Commitments Schedule Of Agreements By Year 15	200,644
Commitments Schedule Of Agreements By Year 16	298,444
Commitments Schedule Of Agreements By Year 17	2,080,938
Commitments Schedule Of Agreements By Year 18	$ 2,379,382