Debt - Schedule of Debt (Details) (Parenthetical) - USD ($)	9 Months Ended	12 Months Ended
	Feb. 29, 2016	May. 31, 2015
Term Note A Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4%, Due January 31, 2019 [Member]
Debt instrument interest rate	0.50%	0.50%
Debt instrument maturity date	Jan. 31, 2019	Jan. 31, 2019
Term Note A Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4%, Due January 31, 2019 [Member] | Maximum [Member]
Debt instrument interest rate	4.00%	4.00%
Term Note B Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4%, Due January 31, 2019 [Member]
Debt instrument interest rate	0.50%	0.50%
Debt instrument maturity date	Jan. 31, 2019	Jan. 31, 2019
Term Note B Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4%, Due January 31, 2019 [Member] | Maximum [Member]
Debt instrument interest rate	4.00%	4.00%
Term note payable to International Bank of Commerce, interest rate of 4.5%, due January 31, 2019 (refinanced January 7, 2016) [Member]
Debt instrument interest rate	4.50%	4.50%
Debt instrument maturity date	Jan. 31, 2019	Jan. 31, 2019
Revolving Note Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2018 [Member]
Debt instrument interest rate	0.50%	0.50%
Debt instrument maturity date	Jan. 31, 2018	Jan. 31, 2018
Revolving Note Payable To International Bank Of Commerce, Prime Rate Of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2018 [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 and interest 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
Note Payable To Yorktown Management & Financial, Llc, 5% Interest, Due February 28, 2019, Monthly Principal And Interest Payments Of $20,629 [Member]
Debt instrument interest rate	5.00%	5.00%
Debt instrument maturity date	Feb. 28, 2019	Feb. 28, 2019
Debt instrument principal and interest amount	$ 20,629	$ 20,629