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Debt - Schedule of Debt (Details) (Parenthetical) - USD ($)
 6 Months Ended 12 Months Ended
Nov. 30, 2016
May 31, 2016
Term Note A Payable To International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4%, Maturing January 7, 2019 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 07, 2019 Jan. 07, 2019
Term Note A Payable To International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4%, Maturing January 7, 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%, Maturing January 7, 2019 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 07, 2019 Jan. 07, 2019
Term Note B Payable To International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4%, Maturing January 7, 2019 [Member] | Maximum [Member]    
Debt instrument interest rate 4.00% 4.00%
Revolving Note Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4.0%, Due January 31, 2019 [Member]    
Debt instrument interest rate 0.50% 0.50%
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, 2019 [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%, Monthly Principal and Interest Payments of $26,215, Due January 31, 2019 [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
Capital Lease with a Private Pallet Leasing Company, Interest Rate of 5%, Maturity of August 7, 2019 [Member]    
Debt instrument interest rate 5.00% 5.00%
Debt instrument maturity date Aug. 07, 2019 Aug. 07, 2019
Note Payable to Robert Rosene, 7.5% Interest, Due January 15, 2018 [Member]    
Debt instrument interest rate 7.50% 7.50%
Debt instrument maturity date Jan. 15, 2018 Jan. 15, 2018
Note Payable to Yorktown Management & Financial Services, LLC, 5.0% 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