Long-term Debt and Capital Lease - Schedule of Non-cancellable Capital Lease (Details) (Parenthetical) - Non-cancellable Capital Lease with Private Company, Interest Rate of 5%, Due August 7, 2019 [Member]	12 Months Ended
	May 31, 2017	May 31, 2016
Capital lease interest rate	5.00%	5.00%
Capital lease maturity	Aug. 07, 2019	Aug. 07, 2019