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Note G - Geographic and Other Information | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Segment Reporting Disclosure [Text Block] | NOTE G - GEOGRAPHIC AND OTHER INFORMATION Through its Guardian Laboratories division, the Company conducts research, product development, manufacturing, and marketing of cosmetic, personal care and sexual wellness ingredients, and a line of healthcare products including pharmaceuticals and medical lubricants. All the products that the Company markets, with the exception of Renacidin, are produced at its facility in Hauppauge, New York. Renacidin, a urological product, is manufactured for the Company by an outside contract manufacturer. The Company’s R&D department not only develops new products but also modifies and refines existing products, with the goal of expanding the potential markets for the Company’s products. Many of the cosmetic ingredients manufactured by the Company, particularly its Lubrajel line of water-based moisturizing and lubricating gels, are currently used by many of the major multinational personal care products companies. The Company operates in one business segment. The Company’s products are separated into four distinct product categories: cosmetic ingredients, pharmaceuticals, medical lubricants and sexual wellness ingredients. Each product category is marketed differently. The cosmetic ingredients are marketed through a global network of distributors. These distributors purchase products outright from the Company and provide the main marketing and sales functions for these products on behalf of the Company. They in turn receive their compensation for those efforts by re-selling those products at a markup to their customers. This enables the Company to aggressively have its products marketed without the high cost of maintaining its own in-house marketing and sales staff. In 2024 we hired a marketing director to work alongside our distributors and provide marketing materials, training and aid in customer visits. We believe this strategy will allow us to better serve our mutual customers and build stronger relationships with our distributors. The Company currently has two written distribution agreements with the companies that market its cosmetic ingredients. The marketing contract with ASI terminated on December 31, 2023, and the Company is currently in negotiations with ASI to establish a new marketing agreement. At this time, we have not finalized a new agreement, but we have made significant strides in the negotiation process. Our goal is to finalize the contract in the first half of 2026, but there can be no assurance that we will be able to do so. We continued to work with ASI as we negotiate the new agreement by fulfilling orders, discussing marketing strategies, and continuing to engage with them on other marketing matters in a manner consistent with past practice. All sales of the Company’s cosmetic ingredients are final other than product later determined to be defective, and the Company does not make any sales on consignment. No prior regulatory approval is needed by the Company to sell any products other than its pharmaceutical products. The end users of its products may or may not need regulatory approvals, depending on the intended claims and uses of those products. The pharmaceutical products include a urological product and a topical biocide that are sold to end users primarily through distribution agreements with major drug wholesalers. For these products, the Company does the marketing, and the drug wholesalers supply the product to the end users, such as hospitals and pharmacies. The Company’s marketing effort for Renacidin, its most important drug product, currently includes a Renacidin website which provides product information to patients and healthcare providers. We also expanded our marketing efforts in 2025 by creating a value proposition for insurance companies in an effort to be included on additional drug formularies. So far, our message has been well received, and we will continue our outreach activities. There is currently no active marketing effort for Clorpactin. Both of these products were originally developed in the 1950s. Clorpactin pre-dated the need for a formal New Drug Application (“NDA”), and the current sterile liquid form of Renacidin is marketed under an NDA that was approved by the FDA in 1990. The medical lubricants are not pharmaceutical products. They consist primarily of water-based lubricating gels, which are marketed by the Company directly to manufacturers that incorporate them into urologic catheters and other medical devices and products that they sell. These products are distinguished from pharmaceutical products in that, unlike the pharmaceutical products, the Company is not required to obtain regulatory approval prior to marketing them. Regulatory approvals are the responsibility of the companies that market the finished products in which the Company’s products are used, which are typically classified as medical devices. However, the Company is responsible for manufacturing these products in accordance with current GMPs, and its manufacturing facility is subject to regular FDA oversight. The sexual wellness ingredients are marketed by Brenntag Specialties, a global market leader in chemicals and ingredient distribution. The Company entered into a new marketing and distribution agreement with Brenntag in January of 2026 in the United States, Canada, Mexico and France. The following tables present the significant concentrations of the Company’s sales. Although a significant percentage of Customer A’s purchases from the Company are sold to foreign customers, in table “(b)” below all sales to Customer A are included in the “United States” sales numbers because all shipments to Customer A are delivered to Customer A's warehouses in the U.S. In addition, there are four customers for the Company’s medical lubricants that take delivery of their shipments in the U.S. but potentially ship some of that product to manufacturing facilities outside the U.S. Since the Company makes those shipments to U.S. locations, sales to those customers are also included in the “United States” sales number in the table below.
| (a) | Net Sales
|  | Years ended December 31, |
|  | 2025 |  |  | 2024 |
Cosmetic Ingredients |  | $ | 3,280,604 |  |  | $ | 5,817,172 |
Pharmaceuticals |  |  | 6,225,905 |  |  |  | 5,602,259 |
Medical Lubricants |  |  | 2,111,104 |  |  |  | 2,028,564 |
Gross Sales |  |  | 11,617,613 |  |  |  | 13,447,995 |
Less: Discounts and allowances |  |  | (1,072,145 | ) |  |  | (1,266,024 | )
Net Sales |  | $ | 10,545,468 |  |  | $ | 12,181,971 |
| (b) | Geographic Information
|  | Years ended December 31, |
|  | 2025 |  |  | 2024 |
United States |  | $ | 8,141,533 |  |  | $ | 10,175,926 |
Other countries |  |  | 2,403,935 |  |  |  | 2,006,045 |
Net Sales |  | $ | 10,545,468 |  |  | $ | 12,181,971 |
| (c) | Gross Sales to Major Customers
|  | Years ended December 31, |
|  | 2025 |  |  | 2024 |
Customer A |  | $ | 2,593,213 |  |  | $ | 5,387,048 |
Customer B |  |  | 2,590,260 |  |  |  | 2,239,705 |
Customer C |  |  | 1,874,068 |  |  |  | 1,831,551 |
Customer D |  |  | 1,596,088 |  |  |  | 1,331,544 |
All other customers |  |  | 2,963,984 |  |  |  | 2,658,147 |
Total Gross Sales |  | $ | 11,617,613 |  |  | $ | 13,447,995 |

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