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Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Current | $ 1,401,327 | $ 918,685
Past Due and still accruing | 1,000 |
Non-Accrual | 3,044 | 795
Total Past Due and Non-Accrual | 6,560 | 5,295
Total Loans | 1,416,473 | 924,676
Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 8,586 | 696
Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 2,126 | 1,218
Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 390 | 3,282
Residential Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 261,906 | 227,766
Non-Accrual | 663 | 567
Total Past Due and Non-Accrual | 1,376 | 1,539
Total Loans | 263,404 | 229,781
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 122 | 476
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 443 | 727
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 270 | 245
Commercial Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 568,601 | 387,897
Non-Accrual | 1,280 | 99
Total Past Due and Non-Accrual | 1,751 | 3,210
Total Loans | 574,123 | 391,327
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 3,771 | 220
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 420 | 176
Commercial Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 51 | 2,935
Agricultural Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 65,557 |
Non-Accrual | 676 |
Total Past Due and Non-Accrual | 705 |
Total Loans | 68,340 |
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 2,078 |
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 29 |
Construction Real Estate Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 20,607 | 17,695
Total Past Due and Non-Accrual |  | 37
Total Loans | 20,797 | 17,732
Construction Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 190 |
Construction Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due |  | 37
Commercial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 283,130 | 134,018
Past Due and still accruing | 1,000 |
Non-Accrual | 23 | 50
Total Past Due and Non-Accrual | 1,920 | 132
Total Loans | 285,295 | 134,150
Commercial [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 245 |
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 878 | 82
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 19 |
Other Agricultural Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 39,844 |
Non-Accrual | 263 |
Total Past Due and Non-Accrual | 273 |
Total Loans | 42,297 |
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Non-Accrual | 2,180 |
Other Agricultural Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 10 |
Consumer Loans To Individuals [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current | 161,682 | 151,309
Non-Accrual | 139 | 79
Total Past Due and Non-Accrual | 535 | 377
Total Loans | 162,217 | 151,686
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | 346 | 233
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due | $ 50 | $ 65

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