v3.25.1
Note 9 - Line of Credit (Details Textual) - PNC Bank [Member] - Revolving Credit Facility [Member] - USD ($)
Aug. 25, 2020
Feb. 01, 2025
Dec. 17, 2021
Line of Credit Facility, Maximum Borrowing Capacity   $ 25,000,000  
Debt Instrument, Covenant, Availability Percentage     10.00%
Debt Instrument, Covenant, Availability, Amount     $ 1,875,000
Debt Instrument, Default, Increase in Interest Rate and Fees 2.00%    
Line of Credit Facility, Remaining Borrowing Capacity   25,000,000  
Long-term Line of Credit, Total   $ 0