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Extended maturity date.

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Guarantees combined amount.

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Revolving loan borrowed.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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LONG-TERM DEBT (Details Narrative) - USD ($)			12 Months Ended
LONG-TERM DEBT (Details Narrative) - USD ($)	Jul. 29, 2022	Jan. 31, 2014	May 31, 2022	May 31, 2021	Jul. 28, 2022	Jun. 01, 2016	Jan. 07, 2016	Dec. 15, 2005
Debt Instrument [Line Items]
Amortization of debt issuance costs			$ 5,727	$ 5,160
Preferred stock dividend amount			328,459	$ 323,219
Maturities long term debt year one			4,160,403
Maturities long term debt year two			8,256,351
Maturities long term debt year three			412,684
Maturities long term debt year four			49,091
Maturities long term debt year five			50,861
Long-Term Debt, Maturity, after Year Five			$ 566,801
Robert B. Rosene, Jr. [Member] \| Director [Member]
Debt Instrument [Line Items]
Debt instrument interest rate								7.50%
Note payable								$ 2,066,000
Restated Loan Agreement [Member]
Debt Instrument [Line Items]
Term loan amount	$ 7,854,707.54
Existing term loan amount	2,669,891.67
Note payable	327,186.98
Purchase of asset	1,912,828.89
Aggregate amount	7,000,000
Revolving loan	2,000,000
Revolving loan borrowed	$ 6,000,000
Revolving Loan [Member]
Debt Instrument [Line Items]
Debt instrument interest rate			4.50%
Line of Credit Facility, Maximum Borrowing Capacity			$ 300,000
Restated Note [Member] \| Robert B. Rosene, Jr. [Member]
Debt Instrument [Line Items]
Debt instrument interest rate						750.00%
Debt instrument principal amount						$ 4,541,690
IBC Loan Agreement [Member]
Debt Instrument [Line Items]
Payments of monthly principal and interest			190,000
Capital expenditure on fixed assets			1,500,000
Preferred stock dividend amount			500,000
IBC Loan Agreement [Member] \| Revolving Loan [Member]
Debt Instrument [Line Items]
Debt instrument principal amount			4,000,000
Line of Credit Facility, Maximum Borrowing Capacity			$ 4,000,000
IBC Loan Agreement [Member] \| Guaranty [Member]
Debt Instrument [Line Items]
Guarantees combined amount		$ 6,500,000					$ 3,500,000
Revolving Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date			Jul. 29, 2024
Loan Agreement between GRE and IBC [Member] \| Mortgage Loan [Member]
Debt Instrument [Line Items]
Debt instrument interest rate		5.50%
Mortgage loan		$ 3,412,500
Extended maturity date		Apr. 30, 2023
Prime Rate [Member]
Debt Instrument [Line Items]
Debt instrument interest rate			4.00%
Prime Rate [Member] \| Revolving Loan [Member]
Debt Instrument [Line Items]
Debt instrument interest rate			0.50%
Prime Rate [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument interest rate					5.50%