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Note 8 - Commitments and Contingencies (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Operating Lease, Expense $ 57,112 $ 34,692
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 90.00%  
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 4.00%  
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 400,000 $ 200,000