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Note 7 - Loans Receivable and Credit Disclosures - Loans Receivable Impairment Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Individually evaluated for credit losses | $ 11,443 | $ 14,386
Collectively evaluated for credit losses | 1,228,871 | 1,227,322
Balance March 31, 2023 | 1,240,314 | 1,241,708
Construction Real Estate [Member] |  |
Individually evaluated for credit losses | 0 | 0
Collectively evaluated for credit losses | 59,756 | 51,253
Balance March 31, 2023 | 59,756 | 51,253
Family Residential Real Estate 1-4 [Member] |  |
Individually evaluated for credit losses | 817 | 805
Collectively evaluated for credit losses | 285,601 | 284,302
Balance March 31, 2023 | 286,418 | 285,107
Multifamily [Member] |  |
Individually evaluated for credit losses | 0 | 0
Collectively evaluated for credit losses | 193,566 | 185,784
Balance March 31, 2023 | 193,566 | 185,784
Commercial Real Estate Portfolio Segment [Member] |  |
Individually evaluated for credit losses | 9,176 | 12,853
Collectively evaluated for credit losses | 341,823 | 340,432
Balance March 31, 2023 | 350,999 | 353,285
Agriculture Real Estate [Member] |  |
Individually evaluated for credit losses | 494 | 165
Collectively evaluated for credit losses | 157,843 | 159,283
Balance March 31, 2023 | 158,337 | 159,448
Commercial Portfolio Segment [Member] |  |
Individually evaluated for credit losses | 188 | 200
Collectively evaluated for credit losses | 82,157 | 77,065
Balance March 31, 2023 | 82,345 | 77,265
Agriculture [Member] |  |
Individually evaluated for credit losses | 752 | 342
Collectively evaluated for credit losses | 91,650 | 113,013
Balance March 31, 2023 | 92,402 | 113,355
Consumer and Other [Member] |  |
Individually evaluated for credit losses | 16 | 21
Collectively evaluated for credit losses | 16,475 | 16,190
Balance March 31, 2023 | $ 16,491 | $ 16,211

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