v3.25.4
Note 7 - General Credit Agreement (Details Textual) - USD ($)
Dec. 31, 2025
Jan. 31, 2024
Feb. 28, 2021
Line of Credit Facility, Remaining Borrowing Capacity $ 0    
Long-Term Line of Credit $ 0    
Revolving Credit Facility [Member]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 5,000,000 $ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage 3.00%