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Loans Receivable and Allowance for Credit Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 1,603,877,000 | $ 1,474,424,000
Non-Accrual | 7,622,000 |
Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 7,622,000 | 1,113,000
Total Past Due and Non-Accrual | 19,193,000 | 3,221,000
Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,603,877,000 | 6,290,000
Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,584,684,000 | 1,464,913,000
Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,223,000 | 1,646,000
Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 348,000 | 462,000
Residential Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 316,546,000 | 298,813,000
Non-Accrual | 432,000 |
Residential Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 432,000 | 486,000
Total Past Due and Non-Accrual | 1,322,000 | 896,000
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 316,546,000 | 567,000
Residential Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 315,224,000 | 297,350,000
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 877,000 | 187,000
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 13,000 | 223,000
Commercial Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 675,156,000 | 651,544,000
Non-Accrual | 2,211,000 |
Commercial Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 2,211,000 | 402,000
Total Past Due and Non-Accrual | 8,388,000 | 807,000
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 675,156,000 | 2,049,000
Commercial Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 666,768,000 | 648,688,000
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,177,000 | 405,000
Agricultural Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 63,859,000 | 68,915,000
Agricultural Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due and Non-Accrual | 127,000 | 130,000
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 63,859,000 | 2,034,000
Agricultural Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 63,732,000 | 66,751,000
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 127,000 | 130,000
Construction Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 51,453,000 | 32,469,000
Construction Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due and Non-Accrual | 18,000 |
Construction Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 51,453,000 |
Construction Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 51,435,000 | 32,469,000
Construction Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 18,000 |
Commercial Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 200,576,000 | 187,257,000
Non-Accrual | 4,264,000 |
Commercial Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 4,264,000 | 61,000
Total Past Due and Non-Accrual | 7,588,000 | 132,000
Commercial Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 200,576,000 | 1,640,000
Commercial Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 192,988,000 | 185,485,000
Commercial Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,170,000 | 71,000
Commercial Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 154,000 |
Other Agricultural Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 31,966,000 | 35,277,000
Other Agricultural Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Past Due and Non-Accrual | 7,000 |
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 31,966,000 |
Other Agricultural Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 31,959,000 | 35,277,000
Other Agricultural Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,000 |
Consumer Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 264,321,000 | 200,149,000
Non-Accrual | 715,000 |
Consumer Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 715,000 | 164,000
Total Past Due and Non-Accrual | 1,743,000 | 1,256,000
Consumer Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 264,321,000 |
Consumer Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 262,578,000 | 198,893,000
Consumer Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 865,000 | 853,000
Consumer Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 163,000 | $ 239,000

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