BASIS OF PRESENTATION	3 Months Ended
Aug. 31, 2021
Accounting Policies [Abstract]
Basis of Accounting [Text Block]	NOTE 1: BASIS OF PRESENTATION Biomerica Inc. and subsidiaries (collectively the “Company”, “Biomerica”, “we”, “us”, or “our”) develops, patents, manufactures and markets advanced diagnostic and therapeutic products used at the point-of-care (in home and physicians' offices) and in hospital/clinical laboratories for detection and/or treatment of medical conditions and diseases. The Company's products are designed to enhance the health and well-being of people, while reducing total healthcare costs. Our primary focus is the research and development of revolutionary, patented, diagnostic-guided therapy (“DGT”) products to treat gastrointestinal diseases, such as irritable bowel syndrome, and other inflammatory diseases. These products are directed at chronic inflammatory illnesses that are widespread and common, and as such address very large markets. Our existing medical diagnostic products that are in the market are sold worldwide primarily in two markets: 1) clinical laboratories and 2) point-of-care (physicians' offices and over-the-counter drugstores like Walmart and Walgreens). Our diagnostic test kits are used to analyze blood, urine, nasal or fecal specimens from patients in the diagnosis of various diseases, food intolerances and other medical complications, by measuring or detecting the existence and/or level of specific bacteria, hormones, antibodies, antigens or other substances, which may exist in a patient’s body, stools, or blood, often in extremely small concentrations. Due to the global 2019 SARS-CoV-2 novel coronavirus pandemic, in March 2020 we began redirecting and focusing a majority of our resources to develop, test, validate, seek regulatory approval for, and sell diagnostic products that indicate if a person has been infected by COVID-19. During fiscal 2021, we sold 2 primary types of COVID-19 tests; 1) antibody diagnostic tests that use a patient’s blood sample to detect if the patient has certain antibodies to COVID-19 that were created as part of their body’s immune response to a COVID-19 infection, even if the infection was asymptomatic, and 2) antigen tests that use a patient’s nasal fluid sample to detect if the patient is currently infected with the virus. Aside from the COVID-19 products we offer, the other products we sell are primarily focused on gastrointestinal diseases, food intolerances, cancer screening and awareness and certain esoteric tests. These diagnostic test products utilize immunoassay technology. Most of our commercial products are CE marked and/or sold for diagnostic use where they are registered by each country’s regulatory agency. In addition, some products are cleared for sale in the U.S. by the FDA. The information set forth in these condensed consolidated financial statements is unaudited and reflects all adjustments which, in the opinion of management, are necessary to present a fair statement of the consolidated results of operations of Biomerica, Inc. and subsidiaries, for the periods indicated. It does not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with accounting principles generally accepted in the United States of America. All adjustments that were made are of a normal recurring nature. The unaudited, condensed consolidated financial statements and notes are presented as permitted by the requirements for Form 10-Q and do not contain certain information included in the annual financial statements and notes. The condensed consolidated balance sheet data as of May 31, 2021 was derived from audited financial statements. The accompanying interim condensed consolidated financial statements should be read in conjunction with the financial statements and related notes included in the Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on August 27, 2021 for the fiscal year ended May 31, 2021, which have been restated as described in our Form 10-K/A as filed on October 14, 2021. The results of operations for the interim periods are not necessarily indicative of results to be achieved for the full fiscal year. CORRECTION OF AN ERROR As disclosed in our Form 10-K/A for the year ended May 31, 2021, filed on October 14, 2021, during the process of preparing our financial statements for the quarter ended August 31, 2021, we determined that our calculation of non-cash stock-based compensation expense related to issued stock options in previously issued financial statements was incorrect. Our calculation applied forfeiture adjustments to both vested and unvested outstanding options, including those for which the employee had provided the requisite service, which resulted in an understatement of stock compensation expense. Additionally, our calculation expensed the option at vesting dates versus pro rata over the period the requisite service was provided. As a result of these errors, certain previously reported amounts in the condensed consolidated statement of operations, condensed consolidated statement of stockholders’ equity and condensed consolidated statement of cash flows for the quarter ended August 31, 2020, were materially misstated; accordingly, we have restated the prior period financial statements. See Note 8 to the Financial Statements.

BASIS OF PRESENTATION

3 Months Ended

Aug. 31, 2021

NOTE 1: BASIS OF PRESENTATION

Biomerica Inc. and subsidiaries (collectively the “Company”, “Biomerica”, “we”, “us”, or “our”) develops, patents, manufactures and markets advanced diagnostic and therapeutic products used at the point-of-care (in home and physicians' offices) and in hospital/clinical laboratories for detection and/or treatment of medical conditions and diseases. The Company's products are designed to enhance the health and well-being of people, while reducing total healthcare costs.

Our primary focus is the research and development of revolutionary, patented, diagnostic-guided therapy (“DGT”) products to treat gastrointestinal diseases, such as irritable bowel syndrome, and other inflammatory diseases. These products are directed at chronic inflammatory illnesses that are widespread and common, and as such address very large markets.

Our existing medical diagnostic products that are in the market are sold worldwide primarily in two markets: 1) clinical laboratories and 2) point-of-care (physicians' offices and over-the-counter drugstores like Walmart and Walgreens). Our diagnostic test kits are used to analyze blood, urine, nasal or fecal specimens from patients in the diagnosis of various diseases, food intolerances and other medical complications, by measuring or detecting the existence and/or level of specific bacteria, hormones, antibodies, antigens or other substances, which may exist in a patient’s body, stools, or blood, often in extremely small concentrations.

Due to the global 2019 SARS-CoV-2 novel coronavirus pandemic, in March 2020 we began redirecting and focusing a majority of our resources to develop, test, validate, seek regulatory approval for, and sell diagnostic products that indicate if a person has been infected by COVID-19. During fiscal 2021, we sold 2 primary types of COVID-19 tests; 1) antibody diagnostic tests that use a patient’s blood sample to detect if the patient has certain antibodies to COVID-19 that were created as part of their body’s immune response to a COVID-19 infection, even if the infection was asymptomatic, and 2) antigen tests that use a patient’s nasal fluid sample to detect if the patient is currently infected with the virus.

Aside from the COVID-19 products we offer, the other products we sell are primarily focused on gastrointestinal diseases, food intolerances, cancer screening and awareness and certain esoteric tests. These diagnostic test products utilize immunoassay technology. Most of our commercial products are CE marked and/or sold for diagnostic use where they are registered by each country’s regulatory agency. In addition, some products are cleared for sale in the U.S. by the FDA.

The information set forth in these condensed consolidated financial statements is unaudited and reflects all adjustments which, in the opinion of management, are necessary to present a fair statement of the consolidated results of operations of Biomerica, Inc. and subsidiaries, for the periods indicated. It does not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with accounting principles generally accepted in the United States of America. All adjustments that were made are of a normal recurring nature.

The unaudited, condensed consolidated financial statements and notes are presented as permitted by the requirements for Form 10-Q and do not contain certain information included in the annual financial statements and notes. The condensed consolidated balance sheet data as of May 31, 2021 was derived from audited financial statements. The accompanying interim condensed consolidated financial statements should be read in conjunction with the financial statements and related notes included in the Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on August 27, 2021 for the fiscal year ended May 31, 2021, which have been restated as described in our Form 10-K/A as filed on October 14, 2021. The results of operations for the interim periods are not necessarily indicative of results to be achieved for the full fiscal year.

CORRECTION OF AN ERROR

As disclosed in our Form 10-K/A for the year ended May 31, 2021, filed on October 14, 2021, during the process of preparing our financial statements for the quarter ended August 31, 2021, we determined that our calculation of non-cash stock-based compensation expense related to issued stock options in previously issued financial statements was incorrect. Our calculation applied forfeiture adjustments to both vested and unvested outstanding options, including those for which the employee had provided the requisite service, which resulted in an understatement of stock compensation expense. Additionally, our calculation expensed the option at vesting dates versus pro rata over the period the requisite service was provided. As a result of these errors, certain previously reported amounts in the condensed consolidated statement of operations, condensed consolidated statement of stockholders’ equity and condensed consolidated statement of cash flows for the quarter ended August 31, 2020, were materially misstated; accordingly, we have restated the prior period financial statements. See Note 8 to the Financial Statements.