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Note 7 - Loans Receivable and Credit Disclosures - Allowance for Loan Losses Impairment Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Individually evaluated for credit losses | $ 119 | $ 95 |  |
Collectively evaluated for credit losses | 16,150 | 15,602 |  |
Balance | 16,269 | 15,697 | $ 16,484 | $ 16,621
Construction Real Estate [Member] |  |  |  |
Individually evaluated for credit losses | 0 | 0 |  |
Collectively evaluated for credit losses | 391 | 730 |  |
Balance | 391 | 730 | 645 | 675
Family Residential Real Estate 1-4 [Member] |  |  |  |
Individually evaluated for credit losses | 22 | 10 |  |
Collectively evaluated for credit losses | 3,266 | 3,018 |  |
Balance | 3,288 | 3,028 | 2,899 | 2,752
Multifamily [Member] |  |  |  |
Individually evaluated for credit losses | 0 | 0 |  |
Collectively evaluated for credit losses | 2,568 | 2,493 |  |
Balance | 2,568 | 2,493 | 2,433 | 2,501
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Individually evaluated for credit losses | 0 | 0 |  |
Collectively evaluated for credit losses | 5,206 | 4,742 |  |
Balance | 5,206 | 4,742 | 5,881 | 5,905
Agriculture Real Estate [Member] |  |  |  |
Individually evaluated for credit losses | 0 | 0 |  |
Collectively evaluated for credit losses | 1,218 | 1,625 |  |
Balance | 1,218 | 1,625 | 1,630 | 1,584
Commercial Portfolio Segment [Member] |  |  |  |
Individually evaluated for credit losses | 0 | 0 |  |
Collectively evaluated for credit losses | 1,784 | 1,153 |  |
Balance | 1,784 | 1,153 | 1,152 | 1,170
Agriculture [Member] |  |  |  |
Individually evaluated for credit losses | 81 | 68 |  |
Collectively evaluated for credit losses | 1,311 | 1,637 |  |
Balance | 1,392 | 1,705 | 1,606 | 1,836
Consumer and Other [Member] |  |  |  |
Individually evaluated for credit losses | 16 | 17 |  |
Collectively evaluated for credit losses | 406 | 204 |  |
Balance | $ 422 | $ 221 | $ 238 | $ 198

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- Definition Amount of calculation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References No definition available. + Details
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