Note 6 - Fair Value - Summary of Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Reported Value Measurement [Member]
Investment securities HTM	$ 10,245	$ 8,777
Loans, net	1,996,737	2,000,578
Borrowings	177,403	143,403
Reported Value Measurement [Member] \| Time Deposits [Member]
Time deposits	627,338	661,833
Estimate of Fair Value Measurement [Member]
Investment securities HTM	8,897	7,487
Loans, net	2,006,769	2,020,810
Borrowings	176,339	145,748
Estimate of Fair Value Measurement [Member] \| Time Deposits [Member]
Time deposits	626,859	662,947
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Investment securities HTM	0	0
Loans, net	0	0
Borrowings	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Time Deposits [Member]
Time deposits	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment securities HTM	8,897	7,487
Loans, net	2,001,710	2,010,017
Borrowings	176,339	145,748
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Time Deposits [Member]
Time deposits	626,859	662,947
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Investment securities HTM	0	0
Loans, net	5,059	10,793
Borrowings	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Time Deposits [Member]
Time deposits	$ 0	$ 0