Segment Information - Schedule of Segment Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2016	Jan. 31, 2015	Apr. 30, 2015	Apr. 30, 2014
Cost of revenue	$ 2,976,652		$ 13,463,025
Operating profit (loss )	(12,650,109)	$ (1,318,469)	(7,125,336)	$ (4,135,070)
Cash and cash equivalents (excludes $125,000 of restricted cash)	1,324,288	1,501,387	1,324,288	1,501,387	$ 1,010,543	$ 8,352,949
Investment in real estate	3,282,292		3,282,292
Oil and gas assets, net	790,420		790,420		$ 15,757,011
Intangible assets, net	2,113,054		2,113,054		2,203,393
Restricted cash	125,000		125,000		125,000
Oil and Gas [Member]
Revenue	$ 9,882	$ 488,273	$ 72,723	$ 1,912,034
Cost of revenue
Gross margin	$ 9,882	$ 488,273	$ 72,723	$ 1,912,034
Operating expenses	(15,037,752)	(1,806,742)	(17,436,558)	(6,047,104)
Operating profit (loss )	(15,027,870)	$ (1,318,469)	(17,363,835)	$ (4,135,070)
Cash and cash equivalents (excludes $125,000 of restricted cash)	$ 634,310		$ 634,310		$ 1,010,543
Investment in real estate
Oil and gas assets, net	$ 790,420		$ 790,420		$ 15,757,011
Intangible assets, net	2,113,054		2,113,054		$ 2,203,393
Real Estate [Member]
Revenue	$ 5,354,413		$ 23,701,524
Cost of revenue
Gross margin	$ 5,354,413		$ 23,701,524
Operating expenses	(2,976,652)		(13,463,025)
Operating profit (loss )	2,377,761		10,238,499
Cash and cash equivalents (excludes $125,000 of restricted cash)	689,978		689,978
Investment in real estate	$ 3,282,292		$ 3,282,292
Oil and gas assets, net
Intangible assets, net
Total [Member]
Revenue	$ 5,364,295	$ 488,273	$ 23,774,247	$ 1,912,034
Cost of revenue
Gross margin	$ 5,364,295	$ 488,273	$ 23,774,247	$ 1,912,034
Operating expenses	(18,014,404)	(1,806,742)	(30,899,583)	(6,047,104)
Operating profit (loss )	$ (12,650,109)	$ (1,318,469)	$ (7,125,336)	$ (4,135,070)