v3.26.1
Note 4 - Loans and Allowance for Credit Losses - Loans by Credit Grade (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Pass $ 80,984   $ 80,984   $ 123,097
Pass 98,709   98,709   93,655
Pass 88,263   88,263   42,197
Pass 33,834   33,834   88,946
Pass 86,140   86,140   57,541
Pass 213,271   213,271   190,385
Pass 40,700   40,700   42,519
Loans 641,901   641,901   638,340
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   647
Charge-offs     0   0
Charge-offs (0) $ 356 0 $ 356 647
Pass [Member]          
Pass 79,588   79,588   118,294
Pass 95,202   95,202   80,844
Pass 75,273   75,273   42,024
Pass 32,342   32,342   82,774
Pass 80,165   80,165   57,541
Pass 206,155   206,155   184,551
Pass 31,185   31,185   32,552
Loans 599,910   599,910   598,580
Special Mention [Member]          
Pass 161   161   3,197
Pass 3,173   3,173   12,811
Pass 12,666   12,666   173
Pass 1,492   1,492   6,172
Pass 5,975   5,975   0
Pass 2,540   2,540   1,219
Pass 9,165   9,165   9,548
Loans 35,172   35,172   33,120
Substandard [Member]          
Pass 1,235   1,235   1,606
Pass 334   334   0
Pass 324   324   0
Pass 0   0   0
Pass 0   0   0
Pass 4,576   4,576   4,615
Pass 350   350   419
Loans 6,819   6,819   6,640
Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Commercial Real Estate Portfolio Segment [Member]          
Pass 58,792   58,792   82,200
Pass 62,288   62,288   59,062
Pass 58,332   58,332   26,415
Pass 20,075   20,075   64,904
Pass 63,872   63,872   49,841
Pass 171,635   171,635   144,303
Pass 6,272   6,272   6,001
Loans 441,266   441,266   432,726
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   647
Charge-offs     0   0
Charge-offs     0 356 647
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]          
Pass 58,699   58,699   79,675
Pass 59,796   59,796   46,355
Pass 45,756   45,756   26,415
Pass 20,075   20,075   59,035
Pass 58,097   58,097   49,841
Pass 165,866   165,866   138,474
Pass 6,272   6,272   5,601
Loans 414,561   414,561   405,396
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]          
Pass 93   93   2,188
Pass 2,164   2,164   12,707
Pass 12,576   12,576   0
Pass 0   0   5,869
Pass 5,775   5,775   0
Pass 1,193   1,193   1,219
Pass 0   0   400
Loans 21,801   21,801   22,383
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]          
Pass 0   0   337
Pass 328   328   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 4,576   4,576   4,610
Pass 0   0   0
Loans 4,904   4,904   4,947
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Construction and Land Development [Member]          
Pass 2,959   2,959   10,750
Pass 7,941   7,941   14,282
Pass 11,624   11,624   2,495
Pass 1,355   1,355   3,339
Pass 2,638   2,638   144
Pass 4,364   4,364   4,689
Pass 695   695   653
Loans 31,576   31,576   36,352
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Construction and Land Development [Member] | Pass [Member]          
Pass 2,959   2,959   10,750
Pass 7,941   7,941   14,282
Pass 11,300   11,300   2,495
Pass 75   75   3,339
Pass 2,638   2,638   144
Pass 3,017   3,017   4,689
Pass 695   695   653
Loans 28,625   28,625   36,352
Construction and Land Development [Member] | Special Mention [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 1,280   1,280   0
Pass 0   0   0
Pass 1,347   1,347   0
Pass 0   0   0
Loans 2,627   2,627   0
Construction and Land Development [Member] | Substandard [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 324   324   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 324   324   0
Construction and Land Development [Member] | Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Residential Portfolio Segment [Member]          
Pass 14,700   14,700   23,422
Pass 21,346   21,346   10,190
Pass 10,199   10,199   10,011
Pass 9,520   9,520   16,757
Pass 16,248   16,248   5,606
Pass 34,980   34,980   40,740
Pass 11,810   11,810   12,198
Loans 118,803   118,803   118,924
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0 (0) 0
Residential Portfolio Segment [Member] | Pass [Member]          
Pass 13,465   13,465   22,160
Pass 21,346   21,346   10,190
Pass 10,199   10,199   10,011
Pass 9,520   9,520   16,757
Pass 16,248   16,248   5,606
Pass 34,980   34,980   40,735
Pass 11,794   11,794   12,179
Loans 117,552   117,552   117,638
Residential Portfolio Segment [Member] | Special Mention [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 16   16   0
Loans 16   16   0
Residential Portfolio Segment [Member] | Substandard [Member]          
Pass 1,235   1,235   1,262
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   5
Pass 0   0   19
Loans 1,235   1,235   1,286
Residential Portfolio Segment [Member] | Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Commercial Portfolio Segment [Member]          
Pass 4,518   4,518   6,348
Pass 7,115   7,115   10,067
Pass 8,062   8,062   3,240
Pass 2,856   2,856   3,946
Pass 3,382   3,382   1,950
Pass 2,290   2,290   651
Pass 21,923   21,923   23,667
Loans 50,146   50,146   49,869
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0 (0) 0
Commercial Portfolio Segment [Member] | Pass [Member]          
Pass 4,450   4,450   5,332
Pass 6,100   6,100   9,963
Pass 7,972   7,972   3,067
Pass 2,644   2,644   3,643
Pass 3,182   3,182   1,950
Pass 2,290   2,290   651
Pass 12,424   12,424   14,119
Loans 39,062   39,062   38,725
Commercial Portfolio Segment [Member] | Special Mention [Member]          
Pass 68   68   1,009
Pass 1,009   1,009   104
Pass 90   90   173
Pass 212   212   303
Pass 200   200   0
Pass 0   0   0
Pass 9,149   9,149   9,148
Loans 10,728   10,728   10,737
Commercial Portfolio Segment [Member] | Substandard [Member]          
Pass 0   0   7
Pass 6   6   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 350   350   400
Loans 356   356   407
Commercial Portfolio Segment [Member] | Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Consumer Portfolio Segment [Member]          
Pass 15   15   377
Pass 19   19   54
Pass 46   46   36
Pass 28   28   0
Pass 0   0   0
Pass 2   2   2
Pass 0   0   0
Loans 110   110   469
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0   0
Charge-offs     0 $ (0) 0
Consumer Portfolio Segment [Member] | Pass [Member]          
Pass 15   15   377
Pass 19   19   54
Pass 46   46   36
Pass 28   28   0
Pass 0   0   0
Pass 2   2   2
Pass 0   0   0
Loans 110   110   469
Consumer Portfolio Segment [Member] | Special Mention [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Consumer Portfolio Segment [Member] | Substandard [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans 0   0   0
Consumer Portfolio Segment [Member] | Doubtful [Member]          
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Pass 0   0   0
Loans $ 0   $ 0   $ 0