INCOME TAXES (Details) - Income Taxes - USD ($)	12 Months Ended
	May 31, 2017	May 31, 2016
Current:
U.S. Federal
State and local		(800)
Total current		(800)
Deferred:
U.S. Federal		(579,414)
State and local		(123,586)
Total deferred		(703,000)
Income tax (expense) benefit		$ (703,800)