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Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total Loans | $ 1,412,289 | $ 924,676
Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 1,397,574 | 918,685
Non-Accrual | 3,391 | 795
Total Past Due and Non-Accrual | 5,434 | 5,295
Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 9,281 | 696
Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 1,656 | 1,218
Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 387 | 3,282
Residential Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 263,127 | 229,781
Residential Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 261,406 | 227,766
Non-Accrual | 571 | 567
Total Past Due and Non-Accrual | 1,130 | 1,539
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 591 | 476
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 355 | 727
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 204 | 245
Commercial Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 579,104 | 391,327
Commercial Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 573,376 | 387,897
Non-Accrual | 1,674 | 99
Total Past Due and Non-Accrual | 1,733 | 3,210
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 3,995 | 220
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 59 | 176
Commercial Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due |  | 2,935
Agricultural Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 66,334 |
Agricultural Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 63,615 |
Non-Accrual | 676 |
Total Past Due and Non-Accrual | 676 |
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 2,043 |
Construction Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 21,005 | 17,732
Construction Real Estate Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 20,811 | 17,695
Total Past Due and Non-Accrual |  | 37
Construction Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 194 |
Construction Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due |  | 37
Commercial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 283,741 | 134,150
Commercial [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 282,374 | 134,018
Non-Accrual | 22 | 50
Total Past Due and Non-Accrual | 1,121 | 132
Commercial [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 246 |
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 1,009 | 82
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 90 |
Other Agricultural Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 40,929 |
Other Agricultural Loans [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 38,454 |
Non-Accrual | 263 |
Total Past Due and Non-Accrual | 263 |
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 2,212 |
Consumer Loans To Individuals [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans | 158,049 | 151,686
Consumer Loans To Individuals [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 157,538 | 151,309
Non-Accrual | 185 | 79
Total Past Due and Non-Accrual | 511 | 377
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 233 | 233
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | $ 93 | $ 65

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