Note 1 - Nature of Business	3 Months Ended
Jun. 30, 2021
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1 - NATURE OF BUSINESS ADM Tronics Unlimited, Inc. ("we", "us", “the Company" or "ADM"), was incorporated under the laws of the state of Delaware on November 24, 1969. We are a manufacturing and engineering concern whose principal lines of business are the design, manufacture and sale of electronics of our own products or on a contract manufacturing basis; the production and sale of chemical and antistatic products; and, research, development and engineering services. Electronic equipment is manufactured in accordance with customer specifications on a contract basis. Our electronic device product line consists principally of proprietary devices used in diagnostics and therapeutics of humans and animals and electronic controllers for spas and hot tubs. These products are sold to customers located principally in the United States. We are registered with the FDA as a contract manufacturing facility and we manufacture medical devices for customers in accordance with their designs and specifications. Our chemical product line is principally comprised of water-based chemical products used in the food packaging and converting industries, and anti-static conductive paints, coatings and other products. These products are sold to customers located in the United States, Australia, Asia and Europe. We also provide research, development, regulatory and engineering services to customers. Our Sonotron Medical Systems, Inc. subsidiary (“Sonotron”) is involved in medical electronic therapeutic technology. The accompanying unaudited condensed consolidated financial statements have been prepared by ADM pursuant to accounting principles generally accepted in the United States of America (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (“SEC”) including Form 10-Q and Regulation S-X. The information furnished herein reflects all adjustments (consisting of normal recurring accruals and adjustments) which are, in the opinion of management, necessary to fairly present the condensed financial position and operating results for the respective periods. Certain information and footnote disclosures normally present in annual financial statements prepared in accordance with GAAP have been omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and explanatory notes for the year ended March 31, 2021 as disclosed in our annual report on Form 10-K for that year. The operating results and cash flows for the three months ended June 30, 2021 (unaudited) are not necessarily indicative of the results to be expected for the pending full year ending March 31, 2022.

Note 1 - Nature of Business

3 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

NOTE 1 - NATURE OF BUSINESS

ADM Tronics Unlimited, Inc. ("we", "us", “the Company" or "ADM"), was incorporated under the laws of the state of Delaware on November 24, 1969. We are a manufacturing and engineering concern whose principal lines of business are the design, manufacture and sale of electronics of our own products or on a contract manufacturing basis; the production and sale of chemical and antistatic products; and, research, development and engineering services.

Electronic equipment is manufactured in accordance with customer specifications on a contract basis. Our electronic device product line consists principally of proprietary devices used in diagnostics and therapeutics of humans and animals and electronic controllers for spas and hot tubs. These products are sold to customers located principally in the United States. We are registered with the FDA as a contract manufacturing facility and we manufacture medical devices for customers in accordance with their designs and specifications. Our chemical product line is principally comprised of water-based chemical products used in the food packaging and converting industries, and anti-static conductive paints, coatings and other products. These products are sold to customers located in the United States, Australia, Asia and Europe. We also provide research, development, regulatory and engineering services to customers. Our Sonotron Medical Systems, Inc. subsidiary (“Sonotron”) is involved in medical electronic therapeutic technology.

The accompanying unaudited condensed consolidated financial statements have been prepared by ADM pursuant to accounting principles generally accepted in the United States of America (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (“SEC”) including Form 10-Q and Regulation S-X. The information furnished herein reflects all adjustments (consisting of normal recurring accruals and adjustments) which are, in the opinion of management, necessary to fairly present the condensed financial position and operating results for the respective periods. Certain information and footnote disclosures normally present in annual financial statements prepared in accordance with GAAP have been omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and explanatory notes for the year ended March 31, 2021 as disclosed in our annual report on Form 10-K for that year. The operating results and cash flows for the three months ended June 30, 2021 (unaudited) are not necessarily indicative of the results to be expected for the pending full year ending March 31, 2022.