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Note 4 - Loans Receivable and Credit Disclosures - Past Due Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Loans receivable |  | $ 1,160,667 | $ 1,147,577
Financing receivable, recorded investment, 90 days past due and still accruing |  | 169 | 39
Construction Real Estate [Member] |  |  |
Loans receivable |  | 42,638 | 45,497
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 246,745 | 213,562
Financing receivable, recorded investment, 90 days past due and still accruing |  | 169 | 6
Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 515,367 | 496,357
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 153,457 | 151,992
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Commercial Portfolio Segment [Member] |  |  |
Loans receivable | [1] | 75,482 | 122,535
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 3
Agriculture [Member] |  |  |
Loans receivable |  | 111,881 | 102,586
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 30
Consumer and Other [Member] |  |  |
Loans receivable |  | 15,097 | 15,048
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |
Loans receivable |  | 1,724 | 2,798
Financing Receivables 30 to 89 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 0 | 169
Financing Receivables 30 to 89 Days Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 1,198 | 1,523
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 24 | 152
Financing Receivables 30 to 89 Days Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 30 | 574
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 251 | 283
Financing Receivables 30 to 89 Days Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 172 | 79
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | 49 | 18
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Loans receivable |  | 497 | 2,494
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 0 | 167
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 482 | 176
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 0 | 56
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 0 | 1,618
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 15 | 3
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 0 | 458
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | 0 | 16
Financial Asset, Past Due [Member] |  |  |
Loans receivable |  | 2,221 | 5,292
Financial Asset, Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 0 | 336
Financial Asset, Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 1,680 | 1,699
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 24 | 208
Financial Asset, Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 30 | 2,192
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 266 | 286
Financial Asset, Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 172 | 537
Financial Asset, Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | 49 | 34
Financial Asset, Not Past Due [Member] |  |  |
Loans receivable |  | 1,158,446 | 1,142,285
Financial Asset, Not Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 42,638 | 45,161
Financial Asset, Not Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 245,065 | 211,863
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 515,343 | 496,149
Financial Asset, Not Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 153,427 | 149,800
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 75,216 | 122,249
Financial Asset, Not Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 111,709 | 102,049
Financial Asset, Not Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | $ 15,048 | $ 15,014
[1] | Commercial loan portfolio includes $6.0 million and $50.9 million of Paycheck Protection Program ("PPP") loans as of December 31, 2021 and 2020, respectively

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