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Loans Receivable and Allowance for Loan Losses (Summary of Amount of Loans in Each Category that were Individually and Collectively Evaluated for Impairment) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans acquired with deteriorated credit quality | $ 8,398 | $ 9,281
Total Loans | 1,389,620 | 1,412,289
Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 2,209 | 2,662
Loans acquired with deteriorated credit quality | 8,398 | 9,281
Collectively evaluated for impairment | 1,379,013 | 1,400,346
Total Loans | 1,389,620 | 1,412,289
Residential Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 258,130 | 263,127
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans acquired with deteriorated credit quality | 572 | 591
Collectively evaluated for impairment | 257,558 | 262,536
Total Loans | 258,130 | 263,127
Commercial Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 597,906 | 579,104
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 1,206 | 2,582
Loans acquired with deteriorated credit quality | 3,460 | 3,995
Collectively evaluated for impairment | 593,240 | 572,527
Total Loans | 597,906 | 579,104
Agricultural Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 64,245 | 66,334
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 858 |
Loans acquired with deteriorated credit quality | 1,906 | 2,043
Collectively evaluated for impairment | 61,481 | 64,291
Total Loans | 64,245 | 66,334
Construction Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 21,839 | 21,005
Construction Real Estate Loans [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans acquired with deteriorated credit quality | 202 | 194
Collectively evaluated for impairment | 21,637 | 20,811
Total Loans | 21,839 | 21,005
Commercial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 250,872 | 283,741
Commercial [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 20 | 80
Loans acquired with deteriorated credit quality | 131 | 246
Collectively evaluated for impairment | 250,721 | 283,415
Total Loans | 250,872 | 283,741
Other Agricultural Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 41,836 | 40,929
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 125 |
Loans acquired with deteriorated credit quality | 2,127 | 2,212
Collectively evaluated for impairment | 39,584 | 38,717
Total Loans | 41,836 | 40,929
Consumer Loans To Individuals [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | 154,792 | 158,049
Consumer Loans To Individuals [Member] | Purchased Credit-Impaired [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Collectively evaluated for impairment | 154,792 | 158,049
Total Loans | $ 154,792 | $ 158,049

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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and other-than-temporary impairments), for loans accounted for as debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
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