Note 3 - Loans - Acquired Loans in Business Combinations (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Loans	$ 1,464,406	$ 1,449,745	$ 1,449,950
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	1,449,708	1,435,026
Real Estate 1 [Member] \| Construction and Land Development [Member]
Loans	97,487	88,424	81,596
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member]
Loans	520,821	527,283	549,502
Real Estate 1 [Member] \| Other Real Estate Loans [Member]
Loans	712,567	696,978	665,682
Commercial and Industrial Loans [Member]
Loans	115,202	117,944	132,396
Consumer and Other Loans [Member]
Loans	18,329	19,116	$ 20,774
Financial Asset Acquired and No Credit Deterioration [Member]
Loans	453,731	480,625
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	441,756	467,450
Financial Asset Acquired and No Credit Deterioration [Member] \| Real Estate 1 [Member] \| Construction and Land Development [Member]
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	7,215	7,461
Financial Asset Acquired and No Credit Deterioration [Member] \| Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member]
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	193,516	207,352
Financial Asset Acquired and No Credit Deterioration [Member] \| Real Estate 1 [Member] \| Other Real Estate Loans [Member]
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	215,312	223,986
Financial Asset Acquired and No Credit Deterioration [Member] \| Commercial and Industrial Loans [Member]
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	22,943	25,428
Financial Asset Acquired and No Credit Deterioration [Member] \| Consumer and Other Loans [Member]
Loans, net of allowance for credit losses, 2026, $14,698; 2025, $14,719	$ 2,770	$ 3,223