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Note 7 - Loans Receivable and Credit Disclosures - Past Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Loans receivable |  | $ 1,143,305 | $ 1,147,577
Financing receivable, recorded investment, 90 days past due and still accruing |  | 84 | 39
Construction Real Estate [Member] |  |  |
Loans receivable |  | 37,476 | 45,497
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 231,468 | 213,562
Financing receivable, recorded investment, 90 days past due and still accruing |  | 84 | 6
Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 519,112 | 496,357
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 153,247 | 151,992
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 0
Commercial Portfolio Segment [Member] |  |  |
Loans receivable | [1] | 85,569 | 122,535
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 3
Agriculture [Member] |  |  |
Loans receivable |  | 101,087 | 102,586
Financing receivable, recorded investment, 90 days past due and still accruing |  | 0 | 30
Consumer and Other [Member] |  |  |
Loans receivable |  | 15,346 | 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 |  | 3,046 | 2,798
Financing Receivables 30 to 89 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 140 | 169
Financing Receivables 30 to 89 Days Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 1,080 | 1,523
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 0 | 152
Financing Receivables 30 to 89 Days Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 1,139 | 574
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 495 | 283
Financing Receivables 30 to 89 Days Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 136 | 79
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | 56 | 18
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Loans receivable |  | 485 | 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 |  | 170 | 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 |  | 0 | 3
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 315 | 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 |  | 3,531 | 5,292
Financial Asset, Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 140 | 336
Financial Asset, Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 1,250 | 1,699
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 0 | 208
Financial Asset, Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 1,139 | 2,192
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 495 | 286
Financial Asset, Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 451 | 537
Financial Asset, Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | 56 | 34
Financial Asset, Not Past Due [Member] |  |  |
Loans receivable |  | 1,139,774 | 1,142,285
Financial Asset, Not Past Due [Member] | Construction Real Estate [Member] |  |  |
Loans receivable |  | 37,336 | 45,161
Financial Asset, Not Past Due [Member] | Family Residential Real Estate 1-4 [Member] |  |  |
Loans receivable |  | 230,218 | 211,863
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Loans receivable |  | 519,112 | 496,149
Financial Asset, Not Past Due [Member] | Agriculture Real Estate [Member] |  |  |
Loans receivable |  | 152,108 | 149,800
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Loans receivable |  | 85,074 | 122,249
Financial Asset, Not Past Due [Member] | Agriculture [Member] |  |  |
Loans receivable |  | 100,636 | 102,049
Financial Asset, Not Past Due [Member] | Consumer and Other [Member] |  |  |
Loans receivable |  | $ 15,290 | $ 15,014
[1] | Commercial loan portfolio includes $14.8 million and $50.9 million of Paycheck Protection Program ("PPP") loans as of September 30, 2021 and December 31, 2020, respectively.

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