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Note 4 - Loans and Allowance for Credit Losses - Loans - Schedule of Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Loans, gross |  | $ 3,053,230 | $ 3,031,861 |  |  |
Allowance for loan losses |  | (47,729) | (41,903) | $ (41,076) | $ (32,912) | [1]
Loans held for investment, net of allowance for loan losses |  | 3,005,501 | 2,989,958 |  |  |
Construction And Land Development Loans [Member] |  |  |  |  |  |
Loans, gross |  | 173,290 | 181,469 |  |  |
Allowance for loan losses |  | (6,053) | (1,219) | (2,638) | (4,150) |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Loans, gross | [2] | 1,201,420 | 1,167,857 |  |  |
Allowance for loan losses |  | (21,879) | (17,826) | (17,657) | (16,603) |
Single Family Residential Mortgages Loans [Member] |  |  |  |  |  |
Loans, gross |  | 1,494,022 | 1,487,796 |  |  |
Allowance for loan losses |  | (17,518) | (20,117) | (17,640) | (7,839) |
Commercial and Industrial [Member] |  |  |  |  |  |
Loans, gross |  | 129,585 | 130,096 |  |  |
Allowance for loan losses |  | (1,339) | (1,348) | (1,804) | (2,813) |
SBA Loans [Member] |  |  |  |  |  |
Loans, gross |  | 47,263 | 52,074 |  |  |
Allowance for loan losses |  | (654) | (1,196) | (621) | (980) |
Other Loans [Member] |  |  |  |  |  |
Loans, gross |  | 7,650 | 12,569 |  |  |
Allowance for loan losses |  | (286) | (197) | $ (716) | $ (527) |
Held for Investment Loans [Member] |  |  |  |  |  |
Loans, gross | [3] | 3,053,230 | 3,031,861 |  |  |
Allowance for loan losses |  | (47,729) | (41,903) |  |  |
Loans held for investment, net of allowance for loan losses |  | $ 3,005,501 | $ 2,989,958 |  |  |
[1] | Reserve was under the ALL method in accordance with ASC 450 and ASC 310.
[2] | Includes non-farm and non-residential real estate loans, multifamily residential and single-family residential loans for a business purpose
[3] | Net of premiums (discounts) on acquired loans and deferred (fees) and costs.

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