Sale of Subsidiary (Details) - USD ($)	3 Months Ended				9 Months Ended		12 Months Ended
	Apr. 30, 2016	Oct. 31, 2015	Jul. 31, 2015	May 02, 2015	Apr. 30, 2016	May 02, 2015	Jul. 31, 2015	Jul. 31, 2014
Subsidiary, Sale of Stock [Line Items]
Net income (loss)	$ 174,603			$ 1,794,176	$ 357,374	$ 2,489,005
ECSI LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Sale of ownership interest to minority shareholders		$ 300,000
Sale of ownership interest to minority shareholders, 1st installment paid in October 2015					150,000
Sale of ownership interest to minority shareholders, 2nd installment paid in February 2016					75,000
Sale of ownership interest to minority shareholders, 3rd installment paid on or before September 1, 2016					75,000
Recognized loss on valuation of investment			$ (400,000)
Assets			$ 1,100,000				$ 1,100,000	$ 1,600,000
Net income (loss)							$ (300,000)
ECSI LLC [Member] | Maximum [Member]
Subsidiary, Sale of Stock [Line Items]
Net income (loss)					$ 100,000