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Note 3 - Loans and Allowance for Loan Losses - Impaired Loans by Loan Category (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Recorded Investment with no related allowance recorded | $ 753 |  | $ 753 |  | $ 572
Unpaid Principal Balance with no related allowance recorded | 897 |  | 897 |  | 694
Recorded Investment with an allowance recorded | 1,934 |  | 1,934 |  | 4,861
Unpaid Principal Balance with an allowance recorded | 1,998 |  | 1,998 |  | 4,943
Related Allowance | 215 |  | 215 |  | 503
Recorded Investment | 2,687 |  | 2,687 |  | 5,433
Unpaid Principal Balance | 2,895 |  | 2,895 |  | 5,637
Average Recorded Investment with no related allowance recorded | 580 | $ 3,814 | 577 | $ 3,742 |
Interest Income Recognized with no related allowance recorded | 0 | 37 | 0 | 84 |
Average Recorded Investment with an allowance recorded | 3,234 | 4,541 | 3,777 | 4,864 |
Interest Income Recognized with an allowance recorded | 15 | 34 | 36 | 75 |
Average Recorded Investment | 3,814 | 8,355 | 4,354 | 8,606 |
Interest Income Recognized | 15 | 71 | 36 | 159 |
Agricultural [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 314 |  | 314 |  | 314
Unpaid Principal Balance with no related allowance recorded | 428 |  | 428 |  | 428
Recorded Investment with an allowance recorded | 6 |  | 6 |  | 2,302
Unpaid Principal Balance with an allowance recorded | 7 |  | 7 |  | 2,302
Related Allowance | 1 |  | 1 |  | 251
Recorded Investment | 320 |  | 320 |  | 2,616
Unpaid Principal Balance | 435 |  | 435 |  | 2,730
Average Recorded Investment with no related allowance recorded | 314 | 778 | 314 | 993 |
Interest Income Recognized with no related allowance recorded | 0 | 24 | 0 | 52 |
Average Recorded Investment with an allowance recorded | 1,117 | 1,451 | 1,512 | 2,177 |
Interest Income Recognized with an allowance recorded | 0 | 16 | 0 | 35 |
Average Recorded Investment | 1,431 | 2,229 | 1,826 | 3,170 |
Interest Income Recognized | 0 | 40 | 0 | 87 |
Commercial and Industrial [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 0 |  | 0 |  | 0
Unpaid Principal Balance with no related allowance recorded | 0 |  | 0 |  | 0
Recorded Investment with an allowance recorded | 159 |  | 159 |  | 339
Unpaid Principal Balance with an allowance recorded | 190 |  | 190 |  | 363
Related Allowance | 52 |  | 52 |  | 95
Recorded Investment | 159 |  | 159 |  | 339
Unpaid Principal Balance | 190 |  | 190 |  | 363
Average Recorded Investment with no related allowance recorded | 46 | 993 | 31 | 731 |
Interest Income Recognized with no related allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment with an allowance recorded | 211 | 165 | 254 | 174 |
Interest Income Recognized with an allowance recorded | 1 | 0 | 2 | 1 |
Average Recorded Investment | 257 | 1,158 | 285 | 905 |
Interest Income Recognized | 1 | 0 | 2 | 1 |
Consumer Portfolio Segment [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 0 |  | 0 |  | 0
Unpaid Principal Balance with no related allowance recorded | 0 |  | 0 |  | 0
Recorded Investment with an allowance recorded | 7 |  | 7 |  | 14
Unpaid Principal Balance with an allowance recorded | 8 |  | 8 |  | 15
Related Allowance | 1 |  | 1 |  | 2
Recorded Investment | 7 |  | 7 |  | 14
Unpaid Principal Balance | 8 |  | 8 |  | 15
Average Recorded Investment with no related allowance recorded | 0 | 0 | 18 | 0 |
Interest Income Recognized with no related allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment with an allowance recorded | 20 | 3 | 18 | 0 |
Interest Income Recognized with an allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment | 20 | 3 |  | 0 |
Interest Income Recognized | 0 | 0 |  |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 0 |  | 0 |  | 94
Unpaid Principal Balance with no related allowance recorded | 0 |  | 0 |  | 94
Recorded Investment with an allowance recorded | 0 |  | 0 |  | 179
Unpaid Principal Balance with an allowance recorded | 0 |  | 0 |  | 179
Related Allowance | 7 |  | 7 |  | 9
Recorded Investment | 0 |  | 0 |  | 273
Unpaid Principal Balance | 0 |  | 0 |  | 273
Average Recorded Investment with no related allowance recorded | 0 | 1,749 | 31 | 1,698 |
Interest Income Recognized with no related allowance recorded | 0 | 13 | 0 | 32 |
Average Recorded Investment with an allowance recorded | 153 | 642 | 162 | 372 |
Interest Income Recognized with an allowance recorded | 2 | 3 | 5 | 6 |
Average Recorded Investment | 153 | 2,391 | 193 | 2,070 |
Interest Income Recognized | 2 | 16 | 5 | 38 |
Construction Real Estate [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 0 |  | 0 |  | 0
Unpaid Principal Balance with no related allowance recorded | 0 |  | 0 |  | 0
Recorded Investment with an allowance recorded | 149 |  | 149 |  | 0
Unpaid Principal Balance with an allowance recorded | 149 |  | 149 |  | 0
Related Allowance | 0 |  | 0 |  | 0
Recorded Investment | 149 |  | 149 |  | 0
Unpaid Principal Balance | 149 |  | 149 |  | 0
Average Recorded Investment with no related allowance recorded | 0 | 27 | 0 | 0 |
Interest Income Recognized with no related allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment with an allowance recorded | 0 | 0 | 0 | 0 |
Interest Income Recognized with an allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment | 0 | 27 |  | 0 |
Interest Income Recognized | 0 | 0 |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |
Recorded Investment with no related allowance recorded | 439 |  | 439 |  | 164
Unpaid Principal Balance with no related allowance recorded | 469 |  | 469 |  | 172
Recorded Investment with an allowance recorded | 1,613 |  | 1,613 |  | 2,027
Unpaid Principal Balance with an allowance recorded | 1,644 |  | 1,644 |  | 2,084
Related Allowance | 154 |  | 154 |  | 146
Recorded Investment | 2,052 |  | 2,052 |  | 2,191
Unpaid Principal Balance | 2,113 |  | 2,113 |  | $ 2,256
Average Recorded Investment with no related allowance recorded | 220 | 267 | 201 | 320 |
Interest Income Recognized with no related allowance recorded | 0 | 0 | 0 | 0 |
Average Recorded Investment with an allowance recorded | 1,733 | 2,280 | 1,831 | 2,141 |
Interest Income Recognized with an allowance recorded | 12 | 15 | 29 | 33 |
Average Recorded Investment | 1,953 | 2,547 | 2,032 | 2,461 |
Interest Income Recognized | $ 12 | $ 15 | $ 29 | $ 33 |

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