v3.26.1
Note 9 - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Other Miscellaneous Operating Expense (Income) $ (2,000,000) [1] $ 0 $ (2,000,000) [1] $ 0    
First Defense, Product Line [Member]            
Other Commitment 199,000   199,000      
Purchase of Inventory [Member]            
Other Commitment 179,000   179,000      
Information Technology Service [Member]            
Other Commitment 745,000   745,000      
President and CEO [Member] | Deferred Compensation, Excluding Share-Based Payments and Retirement Benefits [Member]            
Deferred Compensation Arrangement with Individual, Recorde Liability, Earned and Unpaid Sick Time         $ 239,369  
Deferred Compensation Arrangement with Individual, Recorded Liability, Retention and Performance Bonus         $ 100,000  
Settled Litigation [Member] | Operating Costs the Company Incurred in Developing the Product [Member]            
Litigation Settlement, Amount Awarded from Other Party 2,000,000   2,000,000      
Other Miscellaneous Operating Expense (Income) (2,000,000)   (2,000,000)      
Indemnification Agreement [Member]            
Guarantor Obligations, Current Carrying Value 0   0     $ 0
Fair Value Guarantee [Member]            
Guarantor Obligations, Current Carrying Value 0   0     $ 0
Guarantor Obligations, Maximum Exposure, Undiscounted $ 0   $ 0      
[1] Includes a $2.0 million settlement with a former contract manufacturer that compensated the Company for operating costs incurred in product development and contract performance related to the development of the Company’s Re-Tain® product. See Note 9 for additional discussion.