Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] | NOTE A - NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Business United-Guardian, Inc. (“Registrant” or “Company”) is a Delaware corporation that, through its Guardian Laboratories division, manufactures and markets cosmetic ingredients, pharmaceutical products, medical lubricants and sexual wellness ingredients. Prior to July 1, 2023, the Company manufactured and reported sales of a line of specialty industrial products; however, this product line was discontinued after the second quarter of 2023 due to low sales volume with no growth prospects. The Company also conducts research and product development, primarily related to the development of new and unique cosmetic ingredients. The Company’s research and development department also modifies, refines, and expands the uses for existing products, with the goal of further developing the market for the Company's products. Two major product lines, Lubrajel and Renacidin Impact of Global Supply Chain Instability and Inflation The increased raw material prices that the Company experienced during 2022 and the beginning of 2023 stabilized during the latter part of 2023. The continued supply chain instability, primarily caused by military tensions in the Middle East, has impacted vessels’ access to the Red Sea and Suez Canal. The Company is working closely with its suppliers regarding lead times and continues to closely monitor this situation. Although we have not yet experienced any delays in receiving raw materials or an increase in shipping costs, we are aware that the situation is fluid and could impact us at any time. If that occurs, we may experience longer lead times and increased shipping costs for some of our raw materials, which may impact our future gross margins. As a result of this global supply chain instability, there continues to be uncertainty regarding the potential impact on our operations or financial results and we are unable to provide an accurate estimate or projection as to what the future impact will be. Use of Estimates In preparing financial statements in conformity with a Generally Accepted Accounting Principles in the United States of America (“US GAAP”), management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and revenue and expenses during the reporting period. Actual results could differ from those estimates. Such estimated items include the allowance for credit losses, reserve for inventory obsolescence, accrued distribution fees, outdated material returns, possible impairment of marketable securities and the allocation of overhead. Accounts Receivable and Reserves As of January 1, 2023, the Company adopted FASB Accounting Standards Update (“ASU”) No. 2016-13 , Measurement of Credit Losses on Financial Instruments The carrying amount of accounts receivable is reduced by an allowance for credit losses that reflects the Company’s best estimate of the amounts that will not be collected as of the balance sheet date. This allowance is based on the credit losses expected to arise over the life of the asset and is based on the Current Expected Credit Losses (“CECL”). At December 31, 2023 and 2022, the allowance for credit losses related to accounts receivable amounted to $16,672 and $20,063, respectively. Revenue Recognition The Company records revenue in accordance with ASC Topic 606 “Revenue from Contracts with Customers.” Under this guidance, revenue is recognized when a customer obtains control of promised goods or services, in an amount that reflects the consideration expected to be received in exchange for those goods or services. The Company’s principal source of revenue is product sales. The Company’s sales, as reported, are subject to a variety of deductions, some of which are estimated. These deductions are recorded in the same period in which the revenue is recognized. Such deductions, primarily related to the sale of the Company’s pharmaceutical products, include chargebacks from the United States Department of Veterans Affairs (“VA”), rebates in connection with the Company’s current participation in Medicare programs, distribution fees, discounts, and outdated product returns. These deductions represent estimates of the related obligations and, as such, knowledge and judgment are required when estimating the impact of these revenue deductions on sales for a reporting period. During 2023 and 2022, the Company participated in various government drug rebate programs related to the sale of Renacidin, its most important pharmaceutical product. These programs include the Veterans Affairs Federal Supply Schedule (“FSS”), and the Medicare Part D Coverage Gap Discount Program (“CGDP”). These programs require the Company to sell its product at a discounted price. The Company’s sales, as reported, are net of these rebates, some of which are estimated and are recorded in the same period that the revenue is recognized. In August of 2022, the Inflation Reduction Act (“IRA”) was signed into law. The IRA made significant changes to the current Medicare Part D benefit design as it relates to discounts available to enrollees from pharmaceutical manufacturers of brand name drugs. Beginning on January 1, 2025, the Centers for Medicare & Medicaid Services (“CMS”) will implement a new Medicare Part D Manufacturer Discount Program (“Discount Program”), which will replace the current CGDP. The new Discount Program eliminates the coverage gap benefit phase, introduces pharmaceutical manufacturer discounts in the initial and catastrophic coverage phases and lowers the cap on enrollee out-of-pocket costs. Under the new Discount Program, additional rebates are expected to be owed by pharmaceutical manufacturers due to the restructuring of the benefit periods. The overall financial impact of this new program will vary depending on the products being reimbursed but does have the potential to increase Medicare Part D rebates for drug manufacturers. At this time, the Company is unable to predict what future impact this new program will have on its financial condition; however, it has submitted information to CMS requesting to be classified as a “specified small manufacturer”. If designated as such, the Company would be entitled to a multi-year phase-in period during which it would pay a lower percentage discount on drugs dispensed to beneficiaries. On January 31, 2024, the Company was notified by CMS that it qualified as a specified small manufacturer and will receive the discount phase-in discussed above. As long as a valid purchase order has been received and future collection of the sale amount is reasonably assured, the Company recognizes revenue from sales of its products when those products are shipped, which is when the Company’s performance obligation is satisfied. The Company’s cosmetic products are shipped “Ex-Works” from the Company’s facility in Hauppauge, NY, and the risk of loss and responsibility for the shipment passes to the customer upon shipment. Sales of the Company’s non-pharmaceutical medical products are deemed final upon shipment, and there is no obligation on the part of the Company to repurchase or allow the return of these goods unless they are defective. Sales of the Company’s pharmaceutical products are final upon shipment unless (a) they are found to be defective; (b) the product is damaged in shipping; (c) the product cannot be sold because it is too close to its expiration date; or (d) the product has expired (but it is not more than one year after the expiration date). This return policy conforms to standard pharmaceutical industry practice. The Company estimates an allowance for outdated material returns based on previous years’ historical returns of its pharmaceutical products. The Company does not make sales on consignment, and the collection of the proceeds of the sale of any of the Company’s products is not contingent upon the customer being able to sell the goods to a third party. Any allowances for returns are taken as a reduction of sales within the same period the revenue is recognized. Such allowances are determined based on historical experience under ASC Topic 606-10-32-8. At December 31, 2023 and 2022, the Company had an allowance of $247,847 and $369,154, respectively, for possible outdated material returns, which is included in accrued expenses. There is no asset value associated with these outdated material returns, as these products are destroyed. The timing between recognition of revenue for product sales and the receipt of payment is not significant. The Company’s standard credit terms, which vary depending on the customer, range between 30 and 60 days. The Company recognizes an allowance for credit losses on its accounts receivable in accordance with ASU 2016-13, which is based on the credit losses expected to arise over the life of the asset and is based on Current Expected Credit Loss (“CECL”). Prompt-pay discounts are offered to some customers; however, due to the uncertainty of the customers taking the discounts, the discounts are recorded when they are taken. At December 31, 2023, the Company recorded advance payments from two of its customers in the amount of $15,498, which was recorded as deferred revenue on the balance sheet. The related performance obligations associated with these payments were satisfied in the first quarter of 2024. No The Company has distribution agreements with certain distributors of its pharmaceutical products that entitle those distributors to distribution and services-related fees. The Company records distribution fees, and estimates of distribution fees, as offsets to revenue. Disaggregated net sales by product class are as follows: Years ended December 31, 2023 2022 Cosmetic ingredients $ 4,132,334 $ 5,167,909 Pharmaceuticals 4,950,594 4,943,605 Medical lubricants 1,750,632 2,470,163 Industrial and other 51,594 116,826 Total Net Sales $ 10,885,154 $ 12,698,503 The Company’s cosmetic ingredients are currently marketed worldwide by five distributors, of which the United States (“U.S.”)-based ASI purchases the largest volume. For the years ended December 31, 2023 and 2022, approximately 21% and 25%, respectively, of the Company’s sales were to (a) its foreign-based distributors (which does not include ASI), which marketed and distributed the Company’s cosmetic ingredients to customers outside the U.S, and (b) a few foreign customers for the Company’s medical lubricants, which were sold directly to those customers by the Company. Disaggregated sales by geographic region are as follows: Years ended December 31, 2023 2022 United States* $ 8,601,205 $ 9,537,124 Other countries 2,283,949 3,161,379 Net Sales $ 10,885,154 $ 12,698,503 * Although a significant percentage of ASI’s purchases from the Company are sold to foreign customers, all sales to ASI are considered U.S. sales for financial reporting purposes, since all shipments to ASI are shipped to ASI’s warehouses in the U.S. A certain percentage of those products are subsequently shipped by ASI to its foreign customers. Based on sales information provided to the Company by ASI, 69% of ASI’s sales in 2023 were to customers in foreign countries, compared with 65% in 2022. ASI’s largest foreign market in both 2023 and 2022 was China, which accounted for approximately 29% of ASI’s sales in 2023 and 38% of sales in 2022. Cash and Cash Equivalents For financial statement purposes, the Company considers as cash equivalents all highly liquid investments with an original maturity of three months or less at the time of purchase. The Company deposits cash and cash equivalents with financially strong, FDIC-insured financial institutions, and it believes that any amounts above FDIC insurance limitations are at minimal risk. The amounts held in excess of FDIC limits at any point in time are considered temporary and are primarily due to the timing of maturities of United States Treasury Bills. Cash and cash equivalents held in these accounts are currently insured by the Federal Deposit Insurance Corporation (“FDIC”) up to a maximum of $250,000. At December 31, 2023 and 2022, $315,000 and $105,000, respectively, exceeded the FDIC limit. Dividends On July 12, 2023, the Company’s Board of Directors declared a cash dividend of $0.10 per share, which was paid on August 2, 2023, to all stockholders of record as of July 26, 2023. The Company did not declare any other dividends in 2023. During 2023, the Company declared total dividends of $459,432, of which $459,387 was paid. The balance of $45 is payable to stockholders whose old Guardian Chemical shares have not yet been exchanged to United-Guardian, Inc. shares and are pending escheatment. In June of 2023, the Company’s Board of Directors changed the Company’s dividend declaration practice and expects to consider a semi-annual dividend declaration in January and July of each year. On January 30, 2024, our Board of Directors declared a cash dividend of $.0.25 per share, which was paid on February 20, 2024 to all stockholders of record as of February 12, 2024. On May 10, 2022, the Company’s Board of Directors declared a semi-annual cash dividend of $0.37 per share, which was paid on June 1, 2022, to all stockholders of record as of May 23, 2022. On November 15, 2022, the Company’s Board of Directors declared a semi-annual cash dividend of $0.31 per share, which was paid on December 7, 2022, to all stockholders of record as of November 28, 2022. In 2022, the Company declared a total of $3,124,137 in dividends, of which $3,123,492 was paid. The balance of $645 is payable to stockholders whose old Guardian Chemical shares have not yet been exchanged to United-Guardian, Inc. shares and are pending escheatment. Marketable Securities The Company’s marketable securities include investments in equity and fixed income mutual funds and certificates of deposit with maturities longer than 3 months. The Company’s marketable equity securities are reported at fair value with the related unrealized and realized gains and losses included in net income. Certificates of Deposit are recorded at amortized cost. Realized gains or losses on mutual funds are determined on a specific identification basis. The Company evaluates its investments periodically for possible other-than-temporary impairment by reviewing factors such as the length of time and extent to which fair value had been below cost basis, the financial condition of the issuer and the Company’s ability and intent to hold the investment for a period of time which may be sufficient for anticipated recovery of market value. The Company would record an impairment charge to the extent that the cost of the available-for-sale securities exceeds the estimated fair value of the securities and the decline in value is determined to be other-than-temporary. During 2023 and 2022, the Company did not record an impairment charge regarding its investment in marketable securities because management believes, based on its evaluation of the circumstances, that the decline in fair value below the cost of certain of the Company’s marketable securities is temporary. Inventories Inventories are valued at the lower of cost and net realizable value. Net realizable value is equal to the selling price less the estimated costs of selling and/or disposing of the product. Cost is determined using the average cost method, which approximates cost determined by the first-in, first-out (“FIFO”) method. Inventory costs include material, labor and factory overhead. Property, Plant and Equipment Property, plant and equipment are carried at cost, less accumulated depreciation. Major replacements and betterments are capitalized, while routine maintenance and repairs are expensed as incurred. Assets are depreciated under both accelerated and straight-line methods. Depreciation charged as a result of using accelerated methods was not materially different than that which would result from using the straight-line method for all periods presented. Certain factory equipment and fixtures are constructed by the Company using purchased materials and in-house labor. Such assets are capitalized and depreciated on a basis consistent with the Company's purchased fixed assets. Estimated useful lives are as follows: Factory equipment and fixtures 5 - 7 years Building 40 years Building improvements Lesser of useful life or 20 years Impairment of Long-Lived Assets Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell. No Fair Value of Financial Instruments Management of the Company believes that the fair value of financial instruments, consisting of cash and cash equivalents, accounts receivable, accounts payable, and accrued expenses, approximates their carrying value due to their short payment terms and liquid nature. Concentration of Credit Risk Accounts receivable potentially expose the Company to concentrations of credit risk. The Company monitors the amount of credit it allows each of its customers, using the customer’s prior payment history to determine how much credit to allow or whether credit should be given at all. It is the Company’s policy to discontinue shipments to any customer that is substantially past due on its payments. The Company sometimes requires payment in advance from customers whose payment record is questionable. As a result of its monitoring of the outstanding credit allowed for each customer, as well as the fact that the majority of the Company’s sales are to customers whose satisfactory credit and payment record has been established over a long period of time, the Company believes that its accounts receivable credit risk has been reduced. For the year ended December 31, 2023, four four Supplier Concentration Most of the principal raw materials used by the Company consist of common industrial organic and inorganic chemicals and are available in ample supply from numerous sources. However, there are some raw materials used by the Company that are not readily available or require long lead times. The Company has three Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for future tax consequences attributable to the temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the period that includes the enactment date. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all the deferred tax assets will not be realized. Uncertain tax positions are accounted for utilizing a recognition threshold and measurement attribute for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. As of December 31, 2023 and 2022, the Company did not not Research and Development Research and development expenses are expenditures incurred in connection with in-house research on new and existing products. It includes payroll and payroll related expenses, outside laboratory expenditures, lab supplies, and equipment depreciation. Advertising Expenses Advertising costs are expensed as incurred. The Company did not Earnings Per Share Information Basic earnings per share are computed by dividing net income by the weighted average number of common shares outstanding during the year. Diluted earnings per share would include the dilutive effect of outstanding stock options, if any. New Accounting Standards In December 2023, the FASB issued ASU 2023-09 “ Income Taxes- Improvements to Income Tax Disclosures As of January 1, 2023, the Company adopted FASB Accounting Standards Update (“ASU”) No. 2016-13 , Measurement of Credit Losses on Financial Instruments |