DISCONTINUED OPERATIONS (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015
Revenue	$ 0	$ 0	$ 0	$ 839,969
Costs and expenses:
Cost of revenue	0	0	0	546,296
Selling, general and administrative expenses	0	0	0	111,324
Depreciation and amortization	0	0	0	80,971
Disposal Group, Including Discontinued Operation, Operating Expense	0	0	0	738,591
Operating income from discontinued operations	0	0	0	101,378
Interest expense	0	0	0	(49,234)
Income from discontinued operations before income tax provision	0	0	0	52,144
Income tax provision	0	0	0	(10,883)
Income from discontinued operations, net of tax	0	0	0	41,261
Gain from disposal	0	837,720	0	837,720
Total income from discontinued operations	$ 0	$ 837,720	$ 0	$ 878,981