Note H - Supplemental Disclosures of Cash Flow Information and Non-cash Investing and Financing Activities	12 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	NOTE H - SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION AND NON-CASH INVESTING AND FINANCING ACTIVITIES As of December 31, 2021, the Company had a number of unconverted Guardian shares that would convert to approximately 1,369 shares of United-Guardian, Inc. common stock if all of the remaining holders of those Guardian shares converted their Guardian stock to United-Guardian stock. The Company’s transfer agent continues to try to locate the holders of those shares in anticipation of escheating them to the appropriate state jurisdictions. The Company is currently accruing dividends on the 1,369 shares that have not yet been exchanged or designated for escheatment as of December 31, 2021, and the Company will continue to do so as dividends are declared. During the third quarter of 2020, the Company paid approximately $124,041 to its transfer agent, which represented accrued dividends on unconverted Guardian shares. This payment was made to facilitate the conversion of those shares to United-Guardian, Inc. shares, and the subsequent escheatment of those shares to the appropriate state jurisdictions.

Note H - Supplemental Disclosures of Cash Flow Information and Non-cash Investing and Financing Activities

12 Months Ended

Dec. 31, 2021

Cash Flow, Supplemental Disclosures [Text Block]

NOTE H - SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION AND NON-CASH INVESTING AND FINANCING ACTIVITIES

As of December 31, 2021, the Company had a number of unconverted Guardian shares that would convert to approximately 1,369 shares of United-Guardian, Inc. common stock if all of the remaining holders of those Guardian shares converted their Guardian stock to United-Guardian stock. The Company’s transfer agent continues to try to locate the holders of those shares in anticipation of escheating them to the appropriate state jurisdictions. The Company is currently accruing dividends on the 1,369 shares that have not yet been exchanged or designated for escheatment as of December 31, 2021, and the Company will continue to do so as dividends are declared.

During the third quarter of 2020, the Company paid approximately $124,041 to its transfer agent, which represented accrued dividends on unconverted Guardian shares. This payment was made to facilitate the conversion of those shares to United-Guardian, Inc. shares, and the subsequent escheatment of those shares to the appropriate state jurisdictions.