Property and Equipment (Schedule of Software, Net) (Details) - USD ($)	Jan. 31, 2017	Apr. 30, 2016
Property, Plant and Equipment [Line Items]
Intangible asset, net	$ 156,818	$ 194,932
Software [Member]
Property, Plant and Equipment [Line Items]
Intangible asset, gross	2,091,660	2,567,383
Accumulated amortization	(1,027,210)	(1,560,932)
Intangible asset, net	$ 1,064,450	$ 1,006,451