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Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Past Due and still accruing |  | $ 91
Non-Accrual | $ 708 | 643
Total Past Due and Non-Accrual | 1,724 | 1,208
Total Loans | 1,372,492 | 1,356,040
Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 6,814 | 8,304
Total Loans | 1,372,492 | 1,356,040
Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 1,363,954 | 1,346,528
Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 767 | 431
Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 249 | 134
Residential Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 460 | 469
Total Past Due and Non-Accrual | 842 | 634
Total Loans | 276,592 | 273,040
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 669 | 784
Total Loans | 276,592 | 273,040
Residential Real Estate Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 275,081 | 271,622
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 242 | 155
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 140 | 10
Commercial Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 101 | 103
Total Past Due and Non-Accrual | 335 | 103
Total Loans | 641,581 | 628,724
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 2,744 | 3,285
Total Loans | 641,581 | 628,724
Commercial Real Estate Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 638,502 | 625,336
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 194 |
Commercial Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 40 |
Agricultural Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due and Non-Accrual |  | 25
Total Loans | 64,153 | 61,925
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 1,925 | 1,918
Total Loans | 64,153 | 61,925
Agricultural Real Estate Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 62,228 | 59,982
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due |  | 25
Construction Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 19,407 | 21,990
Construction Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 19,407 | 21,990
Construction Real Estate Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 19,407 | 21,990
Commercial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due and still accruing |  | 91
Non-Accrual | 16 | 16
Total Past Due and Non-Accrual | 90 | 32
Total Loans | 183,212 | 186,031
Commercial [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual |  | 198
Total Loans | 183,212 | 186,031
Commercial [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 183,122 | 185,801
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 74 | 3
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due |  | 13
Other Agricultural Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due and Non-Accrual | 90 |
Total Loans | 36,729 | 37,930
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 1,476 | 2,119
Total Loans | 36,729 | 37,930
Other Agricultural Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 35,163 | 35,811
Other Agricultural Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 90 |
Consumer Loans To Individuals [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 131 | 55
Total Past Due and Non-Accrual | 367 | 414
Total Loans | 150,818 | 146,400
Consumer Loans To Individuals [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 150,818 | 146,400
Consumer Loans To Individuals [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 150,451 | 145,986
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 167 | 248
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | $ 69 | $ 111

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