Debt - Schedule of Debt (Details) (Parenthetical) - USD ($)	3 Months Ended	12 Months Ended
	Aug. 31, 2015	May. 31, 2015
Term Note Payable To International Bank Of Commerce, Interest Rate Of 4.5%, Due January 31, 2019, Monthly Principal And Interest Payments Of $171,760 [Member]
Debt instrument interest rate	4.50%	4.50%
Debt instrument maturity date	Jan. 31, 2019	Jan. 31, 2019
Debt instrument principal amount	$ 171,760	$ 171,760
Revolving Note Payable To International Bank Of Commerce,Prime Rate Of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2016 [Member]
Debt instrument maturity date	Jan. 31, 2016	Jan. 31, 2016
Debt instrument principal amount
Revolving Note Payable To International Bank Of Commerce,Prime Rate Of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2016 [Member] | Minimum [Member]
Debt instrument interest rate	0.50%	0.50%
Revolving Note Payable To International Bank Of Commerce,Prime Rate Of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2016 [Member] | Maximum [Member]
Debt instrument interest rate	4.00%	4.00%
Term Note Payable By GRE To International Bank Of Commerce, Interest Rate Of 4.5%, Due January 31, 2019, Monthly Principal And Interest Payments Of $26,215 [Member]
Debt instrument interest rate	4.50%	4.50%
Debt instrument maturity date	Jan. 31, 2019	Jan. 31, 2019
Debt instrument principal amount	$ 26,215	$ 26,215
Note Payable To Robert Rosene, 7.5% Interest, Due January 15, 2017 [Member]
Debt instrument interest rate	7.50%	7.50%
Debt instrument maturity date	Jan. 15, 2017	Jan. 15, 2017
Debt instrument principal amount