v3.25.2
Note 4 - Loans and the Allowance for Credit Losses - Loan Portfolio Allocated by Internal Risk Ratings (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Loans, Year One $ 57,776   $ 57,776   $ 141,749
Loans, Year Two 142,200   142,200   158,667
Loans, Year Three 153,991   153,991   206,399
Loans, Year Four 189,873   189,873   123,605
Loans, Year Five 114,420   114,420   100,390
Loans, Prior 283,505   283,505   208,524
Loans, Revolving 76,551   76,551   75,475
Loans, Revolving Converted to Term 2,766   2,766   3,762
Loans, Total 1,021,082   1,021,082   1,018,571
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     130   484
Loans, Year Three, Write-offs     86   676
Loans, Year Four, Write-offs     201   293
Loans, Year Five, Write-offs     18   177
Loans, Prior, Write-offs     71   257
Loans, Revolving, Write-offs     0   152
Loans, Total, Write-offs     506   2,039
Loans, Revolving Converted to Term, Write-offs     0   0
Performing Financial Instruments [Member]          
Loans, Year One 1,347   1,347   2,433
Loans, Year Two 1,514   1,514   24,408
Loans, Year Three 20,392   20,392   23,160
Loans, Year Four 18,942   18,942   10,744
Loans, Year Five 8,092   8,092   4,867
Loans, Prior 5,724   5,724   4,068
Loans, Revolving 154   154   157
Loans, Revolving Converted to Term 0   0   0
Loans, Total 56,165   56,165   69,837
Nonperforming Financial Instruments [Member]          
Loans, Year One 0   0   0
Loans, Year Two 4   4   195
Loans, Year Three 192   192   265
Loans, Year Four 236   236   190
Loans, Year Five 224   224   131
Loans, Prior 141   141   88
Loans, Revolving 0   0   2
Loans, Revolving Converted to Term 0   0   0
Loans, Total 797   797   871
Commercial Portfolio Segment [Member] | Commercial Loans [Member]          
Loans, Year One 8,062   8,062   19,946
Loans, Year Two 18,859   18,859   12,886
Loans, Year Three 10,689   10,689   13,249
Loans, Year Four 10,888   10,888   9,214
Loans, Year Five 7,658   7,658   2,127
Loans, Prior 7,301   7,301   6,952
Loans, Revolving 18,442   18,442   13,820
Loans, Revolving Converted to Term 0   0   0
Loans, Total 81,899   81,899   78,194
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     114   86
Loans, Year Three, Write-offs     0   43
Loans, Year Four, Write-offs     51   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   22
Loans, Revolving, Write-offs     0   151
Loans, Total, Write-offs (0) $ 22 165 $ 65 302
Loans, Revolving Converted to Term, Write-offs         0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Pass [Member]          
Loans, Year One 8,058   8,058   19,885
Loans, Year Two 18,859   18,859   12,642
Loans, Year Three 10,454   10,454   12,042
Loans, Year Four 10,807   10,807   8,405
Loans, Year Five 7,203   7,203   1,658
Loans, Prior 6,370   6,370   6,886
Loans, Revolving 18,000   18,000   13,232
Loans, Revolving Converted to Term 0   0   0
Loans, Total 79,751   79,751   74,750
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Special Mention [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   157
Loans, Year Four 0   0   444
Loans, Year Five 255   255   0
Loans, Prior 709   709   36
Loans, Revolving 442   442   513
Loans, Revolving Converted to Term 0   0   0
Loans, Total 1,406   1,406   1,150
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Substandard [Member]          
Loans, Year One 4   4   61
Loans, Year Two 0   0   244
Loans, Year Three 235   235   1,050
Loans, Year Four 81   81   365
Loans, Year Five 200   200   469
Loans, Prior 222   222   30
Loans, Revolving 0   0   75
Loans, Revolving Converted to Term 0   0   0
Loans, Total 742   742   2,294
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]          
Loans, Year One 4,358   4,358   6,939
Loans, Year Two 5,869   5,869   12,094
Loans, Year Three 11,082   11,082   20,055
Loans, Year Four 19,341   19,341   14,999
Loans, Year Five 14,489   14,489   15,637
Loans, Prior 44,124   44,124   30,995
Loans, Revolving 14,845   14,845   18,391
Loans, Revolving Converted to Term 0   0   0
Loans, Total 114,108   114,108   119,110
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   0
Loans, Year Three, Write-offs     11   0
Loans, Year Four, Write-offs     0   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   0
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs 11 (0) 11 (0) 0
Loans, Revolving Converted to Term, Write-offs     0   0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Pass [Member]          
Loans, Year One 3,147   3,147   6,421
Loans, Year Two 5,723   5,723   9,331
Loans, Year Three 7,786   7,786   14,290
Loans, Year Four 7,654   7,654   11,389
Loans, Year Five 10,568   10,568   14,252
Loans, Prior 36,514   36,514   28,075
Loans, Revolving 8,001   8,001   13,356
Loans, Revolving Converted to Term 0   0   0
Loans, Total 79,393   79,393   97,114
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Special Mention [Member]          
Loans, Year One 787   787   518
Loans, Year Two 146   146   53
Loans, Year Three 586   586   1,159
Loans, Year Four 7,197   7,197   358
Loans, Year Five 809   809   1,307
Loans, Prior 6,622   6,622   1,639
Loans, Revolving 4,005   4,005   534
Loans, Revolving Converted to Term 0   0   0
Loans, Total 20,152   20,152   5,568
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Substandard [Member]          
Loans, Year One 424   424   0
Loans, Year Two 0   0   2,710
Loans, Year Three 2,710   2,710   4,606
Loans, Year Four 4,490   4,490   3,252
Loans, Year Five 3,112   3,112   78
Loans, Prior 988   988   1,281
Loans, Revolving 2,839   2,839   4,501
Loans, Revolving Converted to Term 0   0   0
Loans, Total 14,563   14,563   16,428
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]          
Loans, Year One 42,192   42,192   90,579
Loans, Year Two 93,122   93,122   92,735
Loans, Year Three 100,912   100,912   138,406
Loans, Year Four 138,338   138,338   82,627
Loans, Year Five 78,176   78,176   74,326
Loans, Prior 217,718   217,718   160,686
Loans, Revolving 3,350   3,350   7,592
Loans, Revolving Converted to Term 0   0   0
Loans, Total 673,808   673,808   646,951
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   0
Loans, Year Three, Write-offs     0   0
Loans, Year Four, Write-offs     0   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   0
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs (0) (0) 0 (0) 0
Loans, Revolving Converted to Term, Write-offs     0   0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Pass [Member]          
Loans, Year One 42,192   42,192   90,579
Loans, Year Two 93,122   93,122   92,735
Loans, Year Three 100,912   100,912   137,607
Loans, Year Four 137,952   137,952   82,627
Loans, Year Five 78,176   78,176   73,405
Loans, Prior 209,758   209,758   154,466
Loans, Revolving 3,350   3,350   7,142
Loans, Revolving Converted to Term 0   0   0
Loans, Total 665,462   665,462   638,561
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Special Mention [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   210
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 3,046   3,046   0
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 3,046   3,046   210
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Substandard [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   628
Loans, Year Four 386   386   0
Loans, Year Five 0   0   921
Loans, Prior 4,914   4,914   1,760
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 5,300   5,300   3,309
Commercial Portfolio Segment [Member] | Construction Loans [Member]          
Loans, Year One 1,236   1,236   21,220
Loans, Year Two 22,452   22,452   15,244
Loans, Year Three 9,631   9,631   11,264
Loans, Year Four 2,128   2,128   3,767
Loans, Year Five 3,802   3,802   947
Loans, Prior 1,450   1,450   843
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 40,699   40,699   53,285
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   0
Loans, Year Three, Write-offs     0   0
Loans, Year Four, Write-offs     0   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   0
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs (0) (0) 0 (0) 0
Loans, Revolving Converted to Term, Write-offs     0   0
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Pass [Member]          
Loans, Year One 1,236   1,236   21,110
Loans, Year Two 22,346   22,346   15,244
Loans, Year Three 5,483   5,483   11,054
Loans, Year Four 2,128   2,128   3,767
Loans, Year Five 3,802   3,802   947
Loans, Prior 1,450   1,450   843
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 36,445   36,445   52,965
Residential Portfolio Segment [Member] | Real Estate Loan [Member]          
Loans, Year One 581   581   632
Loans, Year Two 380   380   1,105
Loans, Year Three 1,093   1,093   0
Loans, Year Four 0   0   2,064
Loans, Year Five 1,979   1,979   2,355
Loans, Prior 7,047   7,047   4,892
Loans, Revolving 0   0   520
Loans, Revolving Converted to Term 0   0   0
Loans, Total 11,080   11,080   11,568
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   0
Loans, Year Three, Write-offs     0   0
Loans, Year Four, Write-offs     0   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   0
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs (0) (0) 0 (0) 0
Loans, Revolving Converted to Term, Write-offs     0   0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Pass [Member]          
Loans, Year One 581   581   632
Loans, Year Two 380   380   1,105
Loans, Year Three 1,093   1,093   0
Loans, Year Four 0   0   2,064
Loans, Year Five 1,979   1,979   2,355
Loans, Prior 6,654   6,654   4,639
Loans, Revolving 0   0   520
Loans, Revolving Converted to Term 0   0   0
Loans, Total 10,687   10,687   11,315
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Special Mention [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   171
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 150   150   4,460
Loans, Revolving 0   0   450
Loans, Revolving Converted to Term 0   0   0
Loans, Total 150   150   5,081
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Substandard [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   0
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 243   243   253
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 243   243   253
Residential Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]          
Loans, Year One 0   0    
Loans, Year Two 0   0    
Loans, Year Three 4,148   4,148    
Loans, Year Four 0   0    
Loans, Year Five 0   0    
Loans, Prior 0   0    
Loans, Revolving 0   0    
Loans, Revolving Converted to Term 0   0    
Loans, Total 4,148   4,148    
Residential Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member]          
Loans, Year One 0   0   110
Loans, Year Two 106   106   0
Loans, Year Three 0   0   0
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 0   0   0
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 106   106   110
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   0
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 0   0   0
Loans, Revolving 39,760   39,760   34,993
Loans, Revolving Converted to Term 2,766   2,766   3,762
Loans, Total 42,526   42,526   38,755
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   0
Loans, Year Three, Write-offs     0   0
Loans, Year Four, Write-offs     0   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   0
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs (0) (0) 0 (0) 0
Loans, Revolving Converted to Term, Write-offs     0   0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Pass [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   0
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 0   0  
Loans, Revolving 38,784   38,784   34,622
Loans, Revolving Converted to Term 2,653   2,653   3,483
Loans, Total 41,437   41,437   38,105
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Substandard [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   0
Loans, Year Three 0   0   0
Loans, Year Four 0   0   0
Loans, Year Five 0   0   0
Loans, Prior 0   0  
Loans, Revolving 976   976   371
Loans, Revolving Converted to Term 113   113   279
Loans, Total 1,089   1,089   650
Commercial and Residential Portfolio Segments [Member]          
Loans, Year One 56,429   56,429   139,316
Loans, Year Two 140,682   140,682   134,064
Loans, Year Three 133,407   133,407   182,974
Loans, Year Four 170,695   170,695   112,671
Loans, Year Five 106,104   106,104   95,392
Loans, Prior 277,640   277,640   204,368
Loans, Revolving 76,397   76,397   75,316
Loans, Revolving Converted to Term 2,766   2,766   3,762
Loans, Total 964,120   964,120   947,863
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     114   86
Loans, Year Three, Write-offs     11   43
Loans, Year Four, Write-offs     51   0
Loans, Year Five, Write-offs     0   0
Loans, Prior, Write-offs     0   22
Loans, Revolving, Write-offs     0   151
Loans, Total, Write-offs     176   302
Loans, Revolving Converted to Term, Write-offs     0   0
Commercial and Residential Portfolio Segments [Member] | Pass [Member]          
Loans, Year One 55,214   55,214   138,627
Loans, Year Two 140,430   140,430   131,057
Loans, Year Three 125,728   125,728   174,993
Loans, Year Four 158,541   158,541   108,252
Loans, Year Five 101,728   101,728   92,617
Loans, Prior 260,746   260,746   194,909
Loans, Revolving 68,135   68,135   68,872
Loans, Revolving Converted to Term 2,653   2,653   3,483
Loans, Total 913,175   913,175   912,810
Commercial and Residential Portfolio Segments [Member] | Special Mention [Member]          
Loans, Year One 787   787   518
Loans, Year Two 146   146   53
Loans, Year Three 4,734   4,734   1,697
Loans, Year Four 7,197   7,197   802
Loans, Year Five 1,064   1,064   1,307
Loans, Prior 10,527   10,527   6,135
Loans, Revolving 4,447   4,447   1,497
Loans, Revolving Converted to Term 0   0   0
Loans, Total 28,902   28,902   12,009
Commercial and Residential Portfolio Segments [Member] | Substandard [Member]          
Loans, Year One 428   428   171
Loans, Year Two 106   106   2,954
Loans, Year Three 2,945   2,945   6,284
Loans, Year Four 4,957   4,957   3,617
Loans, Year Five 3,312   3,312   1,468
Loans, Prior 6,367   6,367   3,324
Loans, Revolving 3,815   3,815   4,947
Loans, Revolving Converted to Term 113   113   279
Loans, Total 22,043   22,043   23,044
Consumer Portfolio Segment [Member]          
Loans, Year One 1,347   1,347   2,433
Loans, Year Two 1,518   1,518   24,603
Loans, Year Three 20,584   20,584   23,425
Loans, Year Four 19,178   19,178   10,934
Loans, Year Five 8,316   8,316   4,998
Loans, Prior 5,865   5,865   4,156
Loans, Revolving 154   154   159
Loans, Revolving Converted to Term 0   0   0
Loans, Total 56,962   56,962   70,708
Consumer Portfolio Segment [Member] | Automobile Loan [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   23,310
Loans, Year Three 19,580   19,580   22,602
Loans, Year Four 18,592   18,592   10,613
Loans, Year Five 8,110   8,110   4,908
Loans, Prior 5,820   5,820   4,151
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 52,102   52,102   65,584
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     0   389
Loans, Year Three, Write-offs     35   598
Loans, Year Four, Write-offs     133   262
Loans, Year Five, Write-offs     16   171
Loans, Prior, Write-offs     67   223
Loans, Revolving, Write-offs     0   0
Loans, Total, Write-offs 131 263 251 896 1,643
Loans, Revolving Converted to Term, Write-offs     0   0
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Performing Financial Instruments [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   23,163
Loans, Year Three 19,388   19,388   22,361
Loans, Year Four 18,356   18,356   10,426
Loans, Year Five 7,888   7,888   4,779
Loans, Prior 5,680   5,680   4,063
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 51,312   51,312   64,792
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Nonperforming Financial Instruments [Member]          
Loans, Year One 0   0   0
Loans, Year Two 0   0   147
Loans, Year Three 192   192   241
Loans, Year Four 236   236   187
Loans, Year Five 222   222   129
Loans, Prior 140   140   88
Loans, Revolving 0   0   0
Loans, Revolving Converted to Term 0   0   0
Loans, Total 790   790   792
Consumer Portfolio Segment [Member] | Other Loans [Member]          
Loans, Year One 1,347   1,347   2,433
Loans, Year Two 1,518   1,518   1,293
Loans, Year Three 1,004   1,004   823
Loans, Year Four 586   586   321
Loans, Year Five 206   206   90
Loans, Prior 45   45   5
Loans, Revolving 154   154   159
Loans, Revolving Converted to Term 0   0   0
Loans, Total 4,860   4,860   5,124
Loans, Year One, Write-offs     0   0
Loans, Year Two, Write-offs     16   9
Loans, Year Three, Write-offs     40   35
Loans, Year Four, Write-offs     17   31
Loans, Year Five, Write-offs     2   6
Loans, Prior, Write-offs     4   12
Loans, Revolving, Write-offs     0   1
Loans, Total, Write-offs 52 $ 45 79 $ 49 94
Loans, Revolving Converted to Term, Write-offs     0   0
Consumer Portfolio Segment [Member] | Other Loans [Member] | Performing Financial Instruments [Member]          
Loans, Year One 1,347   1,347   2,433
Loans, Year Two 1,514   1,514   1,245
Loans, Year Three 1,004   1,004   799
Loans, Year Four 586   586   318
Loans, Year Five 204   204   88
Loans, Prior 44   44   5
Loans, Revolving 154   154   157
Loans, Revolving Converted to Term 0   0   0
Loans, Total 4,853   4,853   5,045
Consumer Portfolio Segment [Member] | Other Loans [Member] | Nonperforming Financial Instruments [Member]          
Loans, Year One 0   0   0
Loans, Year Two 4   4   48
Loans, Year Three 0   0   24
Loans, Year Four 0   0   3
Loans, Year Five 2   2   2
Loans, Prior 1   1   0
Loans, Revolving 0   0   2
Loans, Revolving Converted to Term 0   0   0
Loans, Total $ 7   $ 7   $ 79