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Loans (Schedule of Allowance for Loan Losses and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | $ 1,427 |  | $ 1,823 |  |  |
Collectively Evaluated for Impairment | 14,534 |  | 13,992 |  |  |
Total Ending Allowance Balance | 16,243 |  | 15,823 |  | $ 14,460 | $ 15,694
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 6,815 |  | 9,619 |  |  |
Loans Collectively Evaluated for Impairment | 2,707,925 |  | 2,722,867 |  |  |
Loans, net of deferred income | 2,725,212 | [1] | 2,744,042 | [2] |  |
Accrued interest included in recorded investment | 12,798 |  | 12,301 |  |  |
Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 282 |  | 8 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 10,472 |  | 11,556 |  |  |
Commercial and Industrial Loans and Leases |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 104 |  | 143 |  |  |
Collectively Evaluated for Impairment | 3,213 |  | 2,810 |  |  |
Total Ending Allowance Balance | 3,317 |  | 2,953 |  | 3,603 | 4,735
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 2,410 |  | 3,536 |  |  |
Loans Collectively Evaluated for Impairment | 554,348 |  | 540,768 |  |  |
Loans, net of deferred income | 557,660 | [1] | 545,342 | [2] |  |
Commercial and Industrial Loans and Leases | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 902 |  | 1,038 |  |  |
Commercial Real Estate Loans |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 1,323 |  | 1,680 |  |  |
Collectively Evaluated for Impairment | 4,141 |  | 3,608 |  |  |
Total Ending Allowance Balance | 5,741 |  | 5,291 |  | 4,622 | 4,591
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 4,405 |  | 6,083 |  |  |
Loans Collectively Evaluated for Impairment | 1,205,000 |  | 1,198,806 |  |  |
Loans, net of deferred income | 1,215,532 | [1] | 1,211,882 | [2] |  |
Commercial Real Estate Loans | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 277 |  | 3 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 6,127 |  | 6,993 |  |  |
Agricultural Loans |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 5,453 |  | 5,776 |  |  |
Total Ending Allowance Balance | 5,453 |  | 5,776 |  | 4,825 | 4,894
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 351,808 |  | 368,817 |  |  |
Loans, net of deferred income | 353,606 | [1] | 370,694 | [2] |  |
Agricultural Loans | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 1,798 |  | 1,877 |  |  |
Home Equity Loans |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 214 |  | 229 |  |  |
Total Ending Allowance Balance | 214 |  | 229 |  | 272 | 330
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 204,258 |  | 208,644 |  |  |
Loans, net of deferred income | 204,626 | [1] | 209,009 | [2] |  |
Home Equity Loans | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 368 |  | 365 |  |  |
Consumer Loans |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 483 |  | 420 |  |  |
Total Ending Allowance Balance | 483 |  | 420 |  | 316 | 298
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 78,356 |  | 77,761 |  |  |
Loans, net of deferred income | 78,356 | [1] | 77,761 | [2] |  |
Consumer Loans | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Residential Mortgage Loans |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 424 |  | 467 |  |  |
Total Ending Allowance Balance | 429 |  | 472 |  | 327 | 343
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 314,155 |  | 328,071 |  |  |
Loans, net of deferred income | 315,432 | [1] | 329,354 | [2] |  |
Residential Mortgage Loans | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 5 |  | 5 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 1,277 |  | 1,283 |  |  |
Unallocated |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 606 |  | 682 |  |  |
Total Ending Allowance Balance | 606 |  | 682 |  | $ 495 | $ 503
Unallocated | Loans Acquired With Deteriorated Credit Quality |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | $ 0 |  | $ 0 |  |  |
[1] | Total recorded investment in loans includes $12,798 in accrued interest.
[2] | Total recorded investment in loans includes $12,301 in accrued interest.

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