Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Apr. 30, 2016
Accounting Policies [Abstract]
Restricted cash	$ 80,803		$ 80,803
Restricted cash COD interest rate	0.50%
COD Maturity date	March 13, 2017
Allowance for doubtful accounts	$ 0		$ 0
Accrued income tax liability	$ 2,689,126	$ 2,501,209