Deferred Revenue (Details Textual) - USD ($)								1 Months Ended							9 Months Ended
	Dec. 08, 2015	Oct. 06, 2015	Nov. 13, 2014	Sep. 09, 2014	Sep. 08, 2014	Aug. 13, 2014	May. 15, 2014	Feb. 29, 2016	Dec. 23, 2015	Sep. 22, 2015	Feb. 17, 2015	Oct. 31, 2014	Jul. 28, 2014	Jul. 22, 2014	Apr. 30, 2016
Deferred Revenue Arrangement [Line Items]
Proceeds from funding agreement	$ 500,000		$ 1,033,614	$ 500,000	$ 444,530	$ 422,344	$ 300,000				$ 988,043	$ 500,000
Interest in asset	0.75%	0.824%	2.06723%	0.98%	0.88891%	0.84469%	1.50%	1.50%	0.954%	2.1333%	1.97609%	0.98%	0.22294%	6.00%	1.50%
Number of shares issuable				50,000			37,500					50,000		10
Deferred Revenue, Additions		$ 618,000						$ 1,000,000	$ 715,500	$ 1,600,000			$ 111,470	$ 3,000,000
Reaserach and Development Arrangement May 15 2014 [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Revenue Recognized															$ 300,000
Reaserach and Development Arrangement July 22 2014 [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Revenue Recognized															3,000,000
Reaserach and Development Arrangement September 9 2014 [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Revenue Recognized															500,000
Reaserach and Development Arrangement October 31 2014 [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Revenue Recognized															500,000
Reaserach and Development Arrangement December 8 2015 [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue, Revenue Recognized															$ 500,000