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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 01, 2021 | May 07, 2020 | Sep. 30, 2017 | Nov. 30, 2016 | May 25, 2016 | Nov. 30, 2015 | Aug. 26, 2021 | May 31, 2021 | May 31, 2020 | Jun. 25, 2020 | May 28, 2020 | Dec. 31, 2019 | Sep. 25, 2019 | Jul. 22, 2019 | Jul. 12, 2019 | Jan. 31, 2018 | Nov. 30, 2017
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  | $ 2,471,453 | $ 1,932,570 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | 151,759 | 153,299 |  |  |  |  |  |  |  |
University OF Southern California [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  | $ 82,472 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and Development Expense |  |  | 12,567 |  |  |  |  |  | 2,200 |  |  |  |  |  |  |  |
Other Expenses |  |  | $ 14,767 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | 17,064 |  |  |  |  |  |  |  |  |
University OF Michigan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 181,015
Research and Development Expense |  |  |  |  |  |  |  | 20,550 | 30,900 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | $ 2,050 |  |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 56.00% |  |  |  |  |  |  |  |  |
University OF Beth Israel Deaconess Medical Center [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  | $ 305,000 |  |  |  |  |  |  |  | $ 142,000 |
Research and Development Expense |  |  |  |  |  |  |  | 0 | 141,640 |  |  |  |  |  |  |  |
Biomerica HP Stool Antigen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 117,200 |  |
Research and Development Expense |  |  |  |  |  |  |  | 13,111 | 13,355 |  |  |  |  |  |  |  |
Biomerica InFoods [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 107,000 |  |  |
Research and Development Expense |  |  |  |  |  |  |  | 12,675 | 20,875 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | $ 19,600 |  |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 31.00% |  |  |  |  |  |  |  |  |
Medical Practice [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  |  | $ 136,000 |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  | $ 11,725 | 45,250 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  |  | 5,975 |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 42.00% |  |  |  |  |  |  |  |  |
Biomerica H. Pylori Product [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  |  | $ 57,800 |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  |  | $ 41,845 |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  |  | 72.00% |  |  |  |  |  |  |  |
Houseton Methodist Research Institute [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  |  | $ 133,000 |  |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  | $ 0 | $ 4,000 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | 3,550 |  |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |
Mayo Clinic Arizona [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  | $ 135,515 |  |  |  |  |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  | 0 | 17,390 |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | $ 3,750 |  |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 13.00% |  |  |  |  |  |  |  |  |
Mayo Clinic Jacksonville [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  |  | $ 135,515 |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  |  | 17,390 |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 17.00% |  |  |  |  |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  |  |  |  |  |  | $ 22,827 |  |  |  |  |  |  |  |  |
University Of Texas Health Science Center [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical Trial Agreement Maximum Budgeted Costs |  |  |  |  |  |  |  |  |  | $ 139,850 |  |  |  |  |  |  |
Research and Development Expense |  |  |  |  |  |  |  | 4,850 |  |  |  |  |  |  |  |  |
Accrued Liabilities, Current |  |  |  |  |  |  |  | $ 3,750 |  |  |  |  |  |  |  |  |
Billed Commitment, Percentage |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |
Royalty Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Expense |  |  |  |  |  |  |  | $ 11,000 | 15,000 |  |  |  |  |  |  |  |
Telcon Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Fees and Other Revenue Receivable |  |  |  |  | $ 1,250,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Other (in Shares) |  |  |  |  | 83,333 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Fees Received |  |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |
Royalty Percentage |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |
Mount Sinai License Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Purchases from Related Party |  |  |  |  |  |  |  |  | $ 5,100 |  |  |  |  |  |  |  |
Mount Sinai License Agreements [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Purchases from Related Party |  |  |  |  |  |  | $ 2,850 |  |  |  |  |  |  |  |  |  |
UC License Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for Other Fees |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License Maintenance Fee, Payable |  | $ 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UC License Agreements [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for Other Fees |  |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |
Building In Irvine California [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Lease, Expense |  |  |  |  |  |  |  | $ 23,637 |  |  |  |  |  |  |  |  |
Building In Irvine California [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental Expense, Increase During Period | $ 25,970 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental Expense, Increase During The Period, Percentage | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease Deposit Liability | $ 22,080 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building In Irvine California [Member] | First Amendment To Lease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases Rent Expenses Minimum Rentals |  |  |  |  |  | $ 21,000 |  |  |  |  |  |  |  |  |  |  |
Rental Expense, Increase During Period |  |  |  |  |  | $ 23,637 |  |  |  |  |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  |  | Aug. 31, 2021 |  |  |  |  |  |  |  |  |  |  |
Revenue Benchmark [Member] | Royalty Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Expense Percentage Of Sales |  |  |  |  |  |  |  | 1.50% | 1.80% |  |  |  |  |  |  |  |
MEXICO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Lease, Expense |  |  |  |  |  |  |  | $ 25,351 | $ 43,481 |  |  |  |  |  |  |  |
MEXICO | Property Available for Operating Lease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases Rent Expenses Minimum Rentals |  |  |  | $ 2,926 |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Lease, Expense |  |  |  | $ 3,262 |  |  |  |  |  |  |  |  |  |  |  |  |
Lease Expiration Period |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |
UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COMMITMENTS AND CONTINGENCIES (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Lease, Expense |  |  |  |  |  |  |  | $ 294,759 | $ 300,267 |  |  |  |  |  |  |  |

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- Definition The maximum budgeted costs related to clinical trial agreement. + References No definition available. + Details
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- Definition This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of liability for lease payments received, including variable lease payments, when collectability is not probable at commencement date for sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123408481&loc=SL77919106-209958 + Details
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- Definition Cash received for fees during the current period. This element excludes cash proceeds from license fees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585 + Details
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