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Note 4 - Loans and the Allowance for Credit Losses - Allocation of the Allowance for Credit Losses (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, Balance |  |  | $ 13,196 |  |
Charge-offs |  |  | (506) |  | $ (2,039)
Loans, Balance | $ 14,209 |  | 14,209 |  | 13,196
Loans, Net of Unfunded Commitments [Member] |  |  |  |  |
Loans, Balance | 13,319 | $ 13,157 | 13,196 | $ 12,867 | 12,867
Charge-offs | (194) | (330) | (506) | (1,010) |
Recoveries | 184 | 330 | 369 | 400 |
Provision for (recovery of) credit losses | 900 | 925 | 1,150 | 1,825 |
Loans, Balance | 14,209 | 14,082 | 14,209 | 14,082 | 13,196
Commercial Portfolio Segment [Member] | Commercial Loans [Member] |  |  |  |  |
Loans, Balance | 1,286 | 1,311 | 1,265 | 1,134 | 1,134
Charge-offs | 0 | (22) | (165) | (65) | (302)
Recoveries | 6 | 6 | 10 | 15 |
Provision for (recovery of) credit losses | 105 | 131 | 287 | 342 |
Loans, Balance | 1,397 | 1,426 | 1,397 | 1,426 | 1,265
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |  |  |  |
Loans, Balance | 1,765 | 1,652 | 1,802 | 1,738 | 1,738
Charge-offs | (11) | 0 | (11) | 0 | 0
Recoveries | 0 | 0 | 0 | 0 |
Provision for (recovery of) credit losses | 903 | 128 | 866 | 42 |
Loans, Balance | 2,657 | 1,780 | 2,657 | 1,780 | 1,802
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |  |  |  |
Loans, Balance | 7,635 | 6,917 | 7,459 | 6,678 | 6,678
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 |
Provision for (recovery of) credit losses | 107 | 664 | 283 | 903 |
Loans, Balance | 7,742 | 7,581 | 7,742 | 7,581 | 7,459
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |
Loans, Balance | 792 | 918 | 815 | 797 | 797
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 |
Provision for (recovery of) credit losses | (98) | 55 | (121) | 176 |
Loans, Balance | 694 | 973 | 694 | 973 | 815
Residential Portfolio Segment [Member] | Real Estate Loan [Member] |  |  |  |  |
Loans, Balance | 111 | 134 | 102 | 137 | 137
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 1 | 1 | 2 | 2 |
Provision for (recovery of) credit losses | (2) | (14) | 6 | (18) |
Loans, Balance | 110 | 121 | 110 | 121 | 102
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] |  |  |  |  |
Loans, Balance | 553 | 437 | 460 | 439 | 439
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 |
Provision for (recovery of) credit losses | 9 | 21 | 102 | 19 |
Loans, Balance | 562 | 458 | 562 | 458 | 460
Consumer Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |
Loans, Balance | 1,083 | 1,700 | 1,215 | 1,865 | 1,865
Charge-offs | (131) | (263) | (251) | (896) | (1,643)
Recoveries | 172 | 319 | 349 | 376 |
Provision for (recovery of) credit losses | (169) | (102) | (358) | 309 |
Loans, Balance | 955 | 1,654 | 955 | 1,654 | 1,215
Consumer Portfolio Segment [Member] | Other Loans [Member] |  |  |  |  |
Loans, Balance | 94 | 88 | 78 | 79 | 79
Charge-offs | (52) | (45) | (79) | (49) | (94)
Recoveries | 5 | 4 | 8 | 7 |
Provision for (recovery of) credit losses | 45 | 42 | 85 | 52 |
Loans, Balance | $ 92 | $ 89 | $ 92 | $ 89 | $ 78

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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