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Debt - Schedule of Debt (Details) (Parenthetical) - USD ($)
9 Months Ended 12 Months Ended
Feb. 28, 2018
May 31, 2017
Debt instrument interest rate 7.40% 5.00%
Debt instrument maturity date Feb. 24, 2023 Aug. 07, 2019
Term Loan A Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4.0%, Maturing January 7, 2019 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 07, 2020 Jan. 07, 2020
Term Loan A Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4.0%, Maturing January 7, 2019 [Member] | Maximum [Member]    
Debt instrument interest rate 4.00% 4.00%
Term Loan B Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4.0% [Member]    
Debt instrument interest rate 0.50% 0.50%
Term Loan B Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% But Not Less Than 4.0% [Member] | Maximum [Member]    
Debt instrument interest rate 4.00% 4.00%
Term Loan C Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.0%, Maturing August 4, 2020 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Aug. 04, 2020 Aug. 04, 2020
Term Loan C Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.0%, Maturing August 4, 2020 [Member] | Maximum [Member]    
Debt instrument interest rate 4.00% 4.00%
Term Loan D Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Maturing January 10, 2022 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 10, 2022 Jan. 10, 2022
Term Loan D Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Maturing January 10, 2022 [Member] | Maximum [Member]    
Debt instrument interest rate 4.75% 4.75%
Term Loan E Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Maturing January 10, 2022 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 10, 2022 Jan. 10, 2022
Term Loan E Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Maturing January 10, 2022 [Member] | Maximum [Member]    
Debt instrument interest rate 4.75% 4.75%
Revolving Loan Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Due January 31, 2020 [Member]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Jan. 31, 2020 Jan. 31, 2020
Revolving Loan Payable to International Bank of Commerce, Prime Rate of Interest Plus 0.5% but Not Less Than 4.75%, Due January 31, 2020 [Member] | Maximum [Member]    
Debt instrument interest rate 4.75% 4.75%
Note Payable to First Bank, Prime Rate of Interest Plus 1.45% but Not Less Than 4.95%, Monthly Principal and Interest Payment of $30,628, Due August 21, 2021, Secured by Production Equipment [Member]    
Debt instrument interest rate 1.45% 1.45%
Debt instrument maturity date Aug. 21, 2021 Aug. 21, 2021
Debt instrument principal and interest amount $ 30,628 $ 30,628
Note Payable to First Bank, Prime Rate of Interest Plus 1.45% but Not Less Than 4.95%, Monthly Principal and Interest Payment of $30,628, Due August 21, 2021, Secured by Production Equipment [Member] | Maximum [Member]    
Debt instrument interest rate 4.95% 4.95%
Term Loan Payable by Gre to International Bank of Commerce, Interest Rate of 4.5%, Monthly Principal and Interest Payment of $26,215, Due January 31, 2019 [Member]    
Debt instrument interest rate 4.50% 4.50%
Debt instrument maturity date   Jan. 31, 2022
Debt instrument principal and interest amount   $ 26,215
Term Loan Payable by Gre to International Bank of Commerce, Interest Rate of 4.5%, Monthly Principal and Interest Payment of $26,215, Due January 31, 2019 [Member]    
Debt instrument maturity date Jan. 31, 2022  
Debt instrument principal and interest amount $ 26,215  
Note Payable to Robert Rosene, 7.5% Interest, Due January 15, 2020 [Member]    
Debt instrument interest rate 7.50% 7.50%
Debt instrument maturity date Jan. 15, 2020 Jan. 15, 2020
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