Note 4 - Loans Receivable - Internal Classification of the Loan Portfolio (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 |
Financing Receivable, Year One | $ 197,344 | | |
Financing Receivable, Year Two | 401,298 | | |
Financing Receivable, Year Three | 260,896 | | |
Financing Receivable, Year Four | 131,804 | | |
Financing Receivable, Year Five | 95,279 | | |
Financing Receivable, prior | 190,236 | | |
Financing Receivable,revolving | 198,916 | | |
Loans receivable | 1,475,773 | $ 1,355,423 | |
Pass [Member] | | | |
Financing Receivable, Year One | 196,379 | | |
Financing Receivable, Year Two | 400,592 | | |
Financing Receivable, Year Three | 259,374 | | |
Financing Receivable, Year Four | 130,468 | | |
Financing Receivable, Year Five | 90,861 | | |
Financing Receivable, prior | 184,143 | | |
Financing Receivable,revolving | 198,256 | | |
Loans receivable | 1,460,073 | 1,325,270 | |
Special Mention [Member] | | | |
Financing Receivable, Year One | 534 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 1,313 | | |
Financing Receivable, Year Four | 149 | | |
Financing Receivable, Year Five | 3,504 | | |
Financing Receivable, prior | 3,718 | | |
Financing Receivable,revolving | 15 | | |
Loans receivable | 9,233 | 22,421 | |
Substandard [Member] | | | |
Financing Receivable, Year One | 431 | | |
Financing Receivable, Year Two | 706 | | |
Financing Receivable, Year Three | 209 | | |
Financing Receivable, Year Four | 1,187 | | |
Financing Receivable, Year Five | 914 | | |
Financing Receivable, prior | 2,375 | | |
Financing Receivable,revolving | 645 | | |
Loans receivable | 6,467 | 7,622 | |
Doubtful [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 0 | 110 | |
Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Residential Portfolio Segment [Member] | | | |
Loans receivable | 195,073 | 195,703 | $ 195,265 |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | | | |
Financing Receivable, Year One | 18,202 | | |
Financing Receivable, Year Two | 37,298 | | |
Financing Receivable, Year Three | 25,117 | | |
Financing Receivable, Year Four | 15,881 | | |
Financing Receivable, Year Five | 11,192 | | |
Financing Receivable, prior | 32,769 | | |
Financing Receivable,revolving | 6,479 | | |
Loans receivable | 146,938 | 135,947 | |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 18,202 | | |
Financing Receivable, Year Two | 37,298 | | |
Financing Receivable, Year Three | 25,117 | | |
Financing Receivable, Year Four | 15,881 | | |
Financing Receivable, Year Five | 11,192 | | |
Financing Receivable, prior | 32,034 | | |
Financing Receivable,revolving | 6,479 | | |
Loans receivable | 146,203 | 135,079 | |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 229 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 229 | 515 | |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 506 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 506 | 353 | |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Residential Portfolio Segment [Member] | One-to-Four Family Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | | | |
Financing Receivable, Year One | 9,377 | | |
Financing Receivable, Year Two | 30,975 | | |
Financing Receivable, Year Three | 7,467 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 316 | | |
Loans receivable | 48,135 | 59,756 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 9,377 | | |
Financing Receivable, Year Two | 30,975 | | |
Financing Receivable, Year Three | 6,710 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 316 | | |
Loans receivable | 47,378 | 59,756 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 757 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 757 | 0 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | Substandard [Member] | | | |
Loans receivable | | 0 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Residential Portfolio Segment [Member] | One-to-Four Family Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | | | |
Loans receivable | 907,366 | 826,549 | 781,843 |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | | | |
Financing Receivable, Year One | 58,273 | | |
Financing Receivable, Year Two | 155,691 | | |
Financing Receivable, Year Three | 143,457 | | |
Financing Receivable, Year Four | 53,769 | | |
Financing Receivable, Year Five | 59,830 | | |
Financing Receivable, prior | 107,484 | | |
Financing Receivable,revolving | 33,459 | | |
Loans receivable | 611,963 | 539,070 | |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 57,308 | | |
Financing Receivable, Year Two | 155,691 | | |
Financing Receivable, Year Three | 142,955 | | |
Financing Receivable, Year Four | 53,647 | | |
Financing Receivable, Year Five | 56,326 | | |
Financing Receivable, prior | 104,785 | | |
Financing Receivable,revolving | 33,459 | | |
Loans receivable | 604,171 | 520,505 | |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 534 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 502 | | |
Financing Receivable, Year Four | 122 | | |
Financing Receivable, Year Five | 3,504 | | |
Financing Receivable, prior | 2,360 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 7,022 | 16,833 | |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 431 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 339 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 770 | 1,732 | |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | | | |
Financing Receivable, Year One | 21,333 | | |
Financing Receivable, Year Two | 80,468 | | |
Financing Receivable, Year Three | 27,959 | | |
Financing Receivable, Year Four | 6,520 | | |
Financing Receivable, Year Five | 6,985 | | |
Financing Receivable, prior | 4,869 | | |
Financing Receivable,revolving | 3,480 | | |
Loans receivable | 151,614 | 151,145 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 21,333 | | |
Financing Receivable, Year Two | 80,468 | | |
Financing Receivable, Year Three | 27,959 | | |
Financing Receivable, Year Four | 6,520 | | |
Financing Receivable, Year Five | 6,985 | | |
Financing Receivable, prior | 3,874 | | |
Financing Receivable,revolving | 3,480 | | |
Loans receivable | 150,619 | 150,101 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 995 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 995 | 1,044 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | | | |
Financing Receivable, Year One | 16,220 | | |
Financing Receivable, Year Two | 37,265 | | |
Financing Receivable, Year Three | 19,923 | | |
Financing Receivable, Year Four | 24,031 | | |
Financing Receivable, Year Five | 10,272 | | |
Financing Receivable, prior | 31,759 | | |
Financing Receivable,revolving | 4,319 | | |
Loans receivable | 143,789 | 136,334 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 16,220 | | |
Financing Receivable, Year Two | 36,858 | | |
Financing Receivable, Year Three | 19,923 | | |
Financing Receivable, Year Four | 22,940 | | |
Financing Receivable, Year Five | 9,785 | | |
Financing Receivable, prior | 30,859 | | |
Financing Receivable,revolving | 4,319 | | |
Loans receivable | 140,904 | 131,646 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 0 | 2,232 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 407 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 1,091 | | |
Financing Receivable, Year Five | 487 | | |
Financing Receivable, prior | 900 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 2,885 | 2,456 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Commercial Real Estate Portfolio Segment [Member] | Farmland Loan [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Home Equity Portfolio Segment [Member] | | | |
Financing Receivable, Year One | 1,156 | | |
Financing Receivable, Year Two | 4,733 | | |
Financing Receivable, Year Three | 383 | | |
Financing Receivable, Year Four | 602 | | |
Financing Receivable, Year Five | 639 | | |
Financing Receivable, prior | 2,928 | | |
Financing Receivable,revolving | 72,780 | | |
Loans receivable | 83,221 | 74,271 | 67,409 |
Home Equity Portfolio Segment [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 1,156 | | |
Financing Receivable, Year Two | 4,733 | | |
Financing Receivable, Year Three | 383 | | |
Financing Receivable, Year Four | 602 | | |
Financing Receivable, Year Five | 639 | | |
Financing Receivable, prior | 2,817 | | |
Financing Receivable,revolving | 72,687 | | |
Loans receivable | 83,017 | 74,147 | |
Home Equity Portfolio Segment [Member] | Special Mention [Member] | | | |
Loans receivable | | 0 | |
Home Equity Portfolio Segment [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 111 | | |
Financing Receivable,revolving | 93 | | |
Loans receivable | 204 | 124 | |
Home Equity Portfolio Segment [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Home Equity Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Consumer Portfolio Segment [Member] | | | |
Financing Receivable, Year One | 10,664 | | |
Financing Receivable, Year Two | 9,017 | | |
Financing Receivable, Year Three | 3,972 | | |
Financing Receivable, Year Four | 2,360 | | |
Financing Receivable, Year Five | 591 | | |
Financing Receivable, prior | 1,207 | | |
Financing Receivable,revolving | 2,021 | | |
Loans receivable | 29,832 | 27,609 | 27,703 |
Consumer Portfolio Segment [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 10,664 | | |
Financing Receivable, Year Two | 9,003 | | |
Financing Receivable, Year Three | 3,966 | | |
Financing Receivable, Year Four | 2,319 | | |
Financing Receivable, Year Five | 591 | | |
Financing Receivable, prior | 1,196 | | |
Financing Receivable,revolving | 2,004 | | |
Loans receivable | 29,743 | 27,560 | |
Consumer Portfolio Segment [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 0 | 10 | |
Consumer Portfolio Segment [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 14 | | |
Financing Receivable, Year Three | 6 | | |
Financing Receivable, Year Four | 41 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 11 | | |
Financing Receivable,revolving | 17 | | |
Loans receivable | 89 | 39 | |
Consumer Portfolio Segment [Member] | Doubtful [Member] | | | |
Loans receivable | | 0 | |
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Commercial Portfolio Segment [Member] | | | |
Loans receivable | 260,281 | 231,291 | $ 241,608 |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | | | |
Financing Receivable, Year One | 25,188 | | |
Financing Receivable, Year Two | 24,625 | | |
Financing Receivable, Year Three | 24,437 | | |
Financing Receivable, Year Four | 21,755 | | |
Financing Receivable, Year Five | 3,373 | | |
Financing Receivable, prior | 6,951 | | |
Financing Receivable,revolving | 23,623 | | |
Loans receivable | 129,952 | 127,255 | |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 25,188 | | |
Financing Receivable, Year Two | 24,625 | | |
Financing Receivable, Year Three | 24,366 | | |
Financing Receivable, Year Four | 21,728 | | |
Financing Receivable, Year Five | 3,373 | | |
Financing Receivable, prior | 6,817 | | |
Financing Receivable,revolving | 23,598 | | |
Loans receivable | 129,695 | 125,035 | |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 54 | | |
Financing Receivable, Year Four | 27 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 134 | | |
Financing Receivable,revolving | 15 | | |
Loans receivable | 230 | 1,476 | |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 17 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 10 | | |
Loans receivable | 27 | 736 | |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Doubtful [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 0 | 8 | |
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | 0 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | | | |
Financing Receivable, Year One | 36,931 | | |
Financing Receivable, Year Two | 21,226 | | |
Financing Receivable, Year Three | 8,181 | | |
Financing Receivable, Year Four | 6,886 | | |
Financing Receivable, Year Five | 2,397 | | |
Financing Receivable, prior | 2,269 | | |
Financing Receivable,revolving | 52,439 | | |
Loans receivable | 130,329 | 104,036 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | Pass [Member] | | | |
Financing Receivable, Year One | 36,931 | | |
Financing Receivable, Year Two | 20,941 | | |
Financing Receivable, Year Three | 7,995 | | |
Financing Receivable, Year Four | 6,831 | | |
Financing Receivable, Year Five | 1,970 | | |
Financing Receivable, prior | 1,710 | | |
Financing Receivable,revolving | 51,914 | | |
Loans receivable | 128,292 | 101,441 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | Special Mention [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | 0 | 311 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | Substandard [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 285 | | |
Financing Receivable, Year Three | 186 | | |
Financing Receivable, Year Four | 55 | | |
Financing Receivable, Year Five | 427 | | |
Financing Receivable, prior | 559 | | |
Financing Receivable,revolving | 525 | | |
Loans receivable | 2,037 | 2,182 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | Doubtful [Member] | | | |
Financing Receivable, Year One | 0 | | |
Financing Receivable, Year Two | 0 | | |
Financing Receivable, Year Three | 0 | | |
Financing Receivable, Year Four | 0 | | |
Financing Receivable, Year Five | 0 | | |
Financing Receivable, prior | 0 | | |
Financing Receivable,revolving | 0 | | |
Loans receivable | $ 0 | 102 | |
Commercial Portfolio Segment [Member] | Agricultural Loan [Member] | Unlikely to be Collected Financing Receivable [Member] | | | |
Loans receivable | | $ 0 | |