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Loans (Schedule of Allowance for Loan Losses and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | ---
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | $ 1,823 |  | $ 2,228 |  |  |
Collectively Evaluated for Impairment | 13,992 |  | 13,455 |  |  |
Total Ending Allowance Balance | 15,823 |  | 15,694 |  | $ 14,808 | $ 14,438
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 9,619 |  | 11,633 |  |  |
Loans Collectively Evaluated for Impairment | 2,722,867 |  | 2,133,752 |  |  |
Loans, net of deferred income | 2,744,042 | [1] | 2,154,502 | [2] |  |
Accrued interest receivable included in total recorded investment in loans and leases | 12,301 |  | 9,483 |  |  |
Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 8 |  | 11 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 11,556 |  | 9,117 |  | 11,048 |
Commercial and Industrial Loans and Leases |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 143 |  | 1,399 |  |  |
Collectively Evaluated for Impairment | 2,810 |  | 3,333 |  |  |
Total Ending Allowance Balance | 2,953 |  | 4,735 |  | 3,725 | 4,242
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 3,536 |  | 5,918 |  |  |
Loans Collectively Evaluated for Impairment | 540,768 |  | 481,152 |  |  |
Loans, net of deferred income | 545,342 | [1] | 488,058 | [2] |  |
Commercial and Industrial Loans and Leases | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 3 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 1,038 |  | 988 |  | 1,656 |
Commercial Real Estate Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 1,680 |  | 829 |  |  |
Collectively Evaluated for Impairment | 3,608 |  | 3,759 |  |  |
Total Ending Allowance Balance | 5,291 |  | 4,591 |  | 5,452 | 6,342
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 6,083 |  | 5,552 |  |  |
Loans Collectively Evaluated for Impairment | 1,198,806 |  | 917,036 |  |  |
Loans, net of deferred income | 1,211,882 | [1] | 929,040 | [2] |  |
Commercial Real Estate Loans | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 3 |  | 3 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 6,993 |  | 6,452 |  | 7,688 |
Agricultural Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 5,776 |  | 4,894 |  |  |
Total Ending Allowance Balance | 5,776 |  | 4,894 |  | 4,094 | 2,115
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 163 |  |  |
Loans Collectively Evaluated for Impairment | 368,817 |  | 336,849 |  |  |
Loans, net of deferred income | 370,694 | [1] | 337,801 | [2] |  |
Agricultural Loans | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 1,877 |  | 789 |  | 706 |
Home Equity Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 229 |  | 330 |  |  |
Total Ending Allowance Balance | 229 |  | 330 |  | 283 | 383
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 208,644 |  | 152,757 |  |  |
Loans, net of deferred income | 209,009 | [1] | 152,757 | [2] |  |
Home Equity Loans | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 365 |  | 0 |  | 0 |
Consumer Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 420 |  | 298 |  |  |
Total Ending Allowance Balance | 420 |  | 298 |  | 235 | 230
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 77,761 |  | 67,647 |  |  |
Loans, net of deferred income | 77,761 | [1] | 67,647 | [2] |  |
Consumer Loans | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 0 |  | 0 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 0 |  | 0 |  | 53 |
Residential Mortgage Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 467 |  | 338 |  |  |
Total Ending Allowance Balance | 472 |  | 343 |  | 329 | 414
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Loans Collectively Evaluated for Impairment | 328,071 |  | 178,311 |  |  |
Loans, net of deferred income | 329,354 | [1] | 179,199 | [2] |  |
Residential Mortgage Loans | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | 5 |  | 5 |  |  |
Loans: |  |  |  |  |  |
Loans, net of deferred income | 1,283 |  | 888 |  | 945 |
Unallocated |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment | 0 |  | 0 |  |  |
Collectively Evaluated for Impairment | 682 |  | 503 |  |  |
Total Ending Allowance Balance | 682 |  | 503 |  | $ 690 | $ 712
Unallocated | Loans Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Acquired with Deteriorated Credit Quality | $ 0 |  | $ 0 |  |  |
[1] | Total recorded investment in loans includes $12,301 in accrued interest.
[2] | Total recorded investment in loans includes $9,483 in accrued interest.

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