DISCONTINUED OPERATION (Details) - Discontinued operations - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0
Cost of revenue	0	0	0	0
Inventory valuation reserve	(404,350)	0	(404,350)	0
Gross profit	(404,350)	0	(404,350)	0
General and administrative	(9,000)	0	(27,520)	0
Stock based compensation	(28,125)	0	(46,875)	0
Operating loss	(441,475)	0	(478,745)	0
Income tax provision	0	0	0	0
Loss from discontinued operations, net of tax	$ (441,475)	$ 0	$ (478,745)	$ 0