v3.26.1
Note 5 - Other Borrowings - Outstanding Advances (Details) - Federal Home Loan Bank of Chicago [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Average balance outstanding $ 0 $ 4,396 $ 0 $ 4,696
Average interest rate during the period   4.80%   4.80%
Maximum [Member]        
Average balance outstanding $ 0 $ 5,000 $ 0 $ 5,000