Non-Controlling Interest (Details)	9 Months Ended
	Jan. 31, 2016 USD ($)
Non-controlling interest at April 30, 2015	$ 3,644,776
Contribution of real estate by of non-controlling interest holders	9,403,368
Non-controlling interest share of income (losses)	(791,353)
Non-controlling interest at January 31, 2016	12,256,791
Bandolier [Member]
Non-controlling interest at April 30, 2015	$ 3,644,776
Contribution of real estate by of non-controlling interest holders
Non-controlling interest share of income (losses)	$ (3,184,304)
Non-controlling interest at January 31, 2016	$ 460,472
Fortis [Member]
Non-controlling interest at April 30, 2015
Contribution of real estate by of non-controlling interest holders	$ 9,403,368
Non-controlling interest share of income (losses)	2,392,951
Non-controlling interest at January 31, 2016	$ 11,796,319