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Schedule of Long-Term Debt (Details) (Parenthetical) - USD ($)
 9 Months Ended 12 Months Ended
Feb. 28, 2022
May 31, 2021
Short-term Debt [Line Items]    
Debt instrument maturity date Mar. 19, 2025  
Term loan A payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 4.0%, maturing April 30, 2023    
Short-term Debt [Line Items]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Apr. 30, 2023 Apr. 30, 2023
Term loan A payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 4.0%, maturing April 30, 2023 | Maximum [Member]    
Short-term Debt [Line Items]    
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, 2024    
Short-term Debt [Line Items]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Aug. 04, 2024 Aug. 04, 2024
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, 2024 | Maximum [Member]    
Short-term Debt [Line Items]    
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    
Short-term Debt [Line Items]    
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 | Maximum [Member]    
Short-term Debt [Line Items]    
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 February 28, 2023    
Short-term Debt [Line Items]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Feb. 28, 2023 Feb. 28, 2023
Term loan E payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 4.75%, maturing February 28, 2023 | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument interest rate 4.75% 4.75%
Term loan F payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.25%, maturing February 29, 2024    
Short-term Debt [Line Items]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Feb. 29, 2024 Feb. 29, 2024
Term loan F payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.25%, maturing February 29, 2024 | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument interest rate 5.25% 5.25%
Term loan G payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.25%, maturing April 30, 2024    
Short-term Debt [Line Items]    
Debt instrument interest rate 0.50% 0.50%
Debt instrument maturity date Apr. 30, 2024 Apr. 30, 2024
Term loan G payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.25%, maturing April 30, 2024 | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument interest rate 5.25% 5.25%
Revolving loan payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.5%, due January 31, 2023    
Short-term Debt [Line Items]    
Debt instrument interest rate   0.50%
Debt instrument maturity date Jan. 31, 2024  
Revolving loan payable to International Bank of Commerce, prime rate of interest plus 0.5% but not less than 5.5%, due January 31, 2023 | Maximum [Member]    
Short-term Debt [Line Items]    
Debt instrument interest rate   5.50%
Paycheck Protection Program note, interest rate of 1.0%, debt forgiven June 2021    
Short-term Debt [Line Items]    
Debt instrument interest rate 1.00% 1.00%
Debt instrument maturity date Jun. 30, 2021 Jun. 30, 2021
Term loan payable by GRE to International Bank of Commerce, interest rate of 5.5%, monthly principal and interest payment of $27,688, due April 30, 2023    
Short-term Debt [Line Items]    
Debt instrument interest rate 5.50% 5.50%
Debt instrument maturity date Apr. 30, 2023 Apr. 30, 2023
Debt instrument principal and interest amount $ 27,688 $ 27,688
Term note payable to Great Western Bank, interest rate of 3.7%, monthly principal and interest payments of $27,593, due March 19, 2025, secured by certain equipment    
Short-term Debt [Line Items]    
Debt instrument interest rate 3.70% 3.70%
Debt instrument maturity date   Mar. 19, 2025
Debt instrument principal and interest amount $ 27,593 $ 27,593
Term loan payable to Great Western Bank, interest rate of 3.5%, monthly principal and interest payments of $5,997, due August 10, 2028, secured by certain real estate    
Short-term Debt [Line Items]    
Debt instrument interest rate 3.50% 3.50%
Debt instrument maturity date Aug. 10, 2028 Aug. 10, 2028
Debt instrument principal and interest amount $ 5,997 $ 5,997
Note payable to Robert Rosene, 7.5% interest, due January 15, 2023    
Short-term Debt [Line Items]    
Debt instrument interest rate 7.50% 7.50%
Debt instrument maturity date Jan. 15, 2024 Jan. 15, 2024