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Note 6 - Loans Receivable and Credit Disclosures - Activity in Allowance for Loan 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
Balance | $ 18,004 |  | $ 16,952 |  | $ 17,058 |  | $ 16,776 |  | $ 16,776
Credit loss expense (benefit) 1 | 75 | [1] | 251 | [1] | 1,069 | [2] | 423 | [1] |
Recoveries of loans charged-off | 3 |  | 3 |  | 5 |  | 7 |  |
Loans charged-off | (1,111) |  | (3) |  | (1,161) |  | (3) |  | (483)
Balance | 16,971 |  | 17,203 |  | 16,971 |  | 17,203 |  | 17,058
Construction Real Estate [Member] |  |  |  |  |  |  |  |  |
Balance | 503 |  | 453 |  | 482 |  | 408 |  | 408
Credit loss expense (benefit) 1 | (23) | [1] | (40) | [1] | 42 | [2] | 5 | [1] |
Recoveries of loans charged-off | 1 |  | 0 |  | 1 |  | 0 |  |
Loans charged-off | 0 |  | 0 |  | (44) |  | 0 |  | 0
Balance | 481 |  | 413 |  | 481 |  | 413 |  | 482
Family Residential Real Estate 1-4 [Member] |  |  |  |  |  |  |  |  |
Balance | 3,850 |  | 3,309 |  | 3,890 |  | 3,333 |  | 3,333
Credit loss expense (benefit) 1 | 32 | [1] | 39 | [1] | (8) | [2] | 14 | [1] |
Recoveries of loans charged-off | 0 |  | 1 |  | 0 |  | 2 |  |
Loans charged-off | (2) |  | 0 |  | (2) |  | 0 |  | 0
Balance | 3,880 |  | 3,349 |  | 3,880 |  | 3,349 |  | 3,890
Multifamily [Member] |  |  |  |  |  |  |  |  |
Balance | 2,152 |  | 2,537 |  | 2,188 |  | 2,542 |  | 2,542
Credit loss expense (benefit) 1 | 69 | [1] | 47 | [1] | 33 | [2] | 42 | [1] |
Recoveries of loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  |
Loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  | 0
Balance | 2,221 |  | 2,584 |  | 2,221 |  | 2,584 |  | 2,188
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Balance | 4,940 |  | 5,494 |  | 4,932 |  | 5,236 |  | 5,236
Credit loss expense (benefit) 1 | (432) | [1] | 36 | [1] | (424) | [2] | 294 | [1] |
Recoveries of loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  |
Loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  | 0
Balance | 4,508 |  | 5,530 |  | 4,508 |  | 5,530 |  | 4,932
Agriculture Real Estate [Member] |  |  |  |  |  |  |  |  |
Balance | 1,589 |  | 1,221 |  | 1,584 |  | 1,238 |  | 1,238
Credit loss expense (benefit) 1 | (16) | [1] | 5 | [1] | (11) | [2] | (12) | [1] |
Recoveries of loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  |
Loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  | 0
Balance | 1,573 |  | 1,226 |  | 1,573 |  | 1,226 |  | 1,584
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Balance | 2,886 |  | 1,913 |  | 1,759 |  | 1,955 |  | 1,955
Credit loss expense (benefit) 1 | 109 | [1] | 1 | [1] | 1,240 | [2] | (42) | [1] |
Recoveries of loans charged-off | 2 |  | 1 |  | 3 |  | 2 |  |
Loans charged-off | (1,109) |  | (3) |  | (1,114) |  | (3) |  | (474)
Balance | 1,888 |  | 1,912 |  | 1,888 |  | 1,912 |  | 1,759
Agriculture [Member] |  |  |  |  |  |  |  |  |
Balance | 1,674 |  | 1,588 |  | 1,805 |  | 1,607 |  | 1,607
Credit loss expense (benefit) 1 | 317 | [1] | 122 | [1] | 186 | [2] | 103 | [1] |
Recoveries of loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  |
Loans charged-off | 0 |  | 0 |  | 0 |  | 0 |  | 0
Balance | 1,991 |  | 1,710 |  | 1,991 |  | 1,710 |  | 1,805
Consumer and Other [Member] |  |  |  |  |  |  |  |  |
Balance | 410 |  | 437 |  | 418 |  | 457 |  | 457
Credit loss expense (benefit) 1 | 19 | [1] | 41 | [1] | 11 | [2] | 19 | [1] |
Recoveries of loans charged-off | 0 |  | 1 |  | 1 |  | 3 |  |
Loans charged-off | 0 |  | 0 |  | (1) |  | 0 |  | (9)
Balance | $ 429 |  | $ 479 |  | $ 429 |  | $ 479 |  | $ 418
[1] | The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $2 thousand related to off-balance sheet credit exposures.
[2] | The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss benefit of $69 thousand related to off-balance sheet credit exposures.

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- 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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