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Loans (Activity in Allowance for Loan Losses Prior to Adoption of ASC 326) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | $ 16,278 | $ 15,823 | $ 15,694
Provision for Loan Losses | 17,550 | 5,325 | 2,070
Recoveries | 514 | 532 | 605
Loans Charged-off | (3,136) | (5,402) | (2,546)
Ending Balance | 46,859 | 16,278 | 15,823
Commercial and Industrial Loans and Leases |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 4,799 | 2,953 | 4,735
Provision for Loan Losses |  | 5,600 | (423)
Recoveries |  | 56 | 141
Loans Charged-off |  | (3,810) | (1,500)
Ending Balance |  | 4,799 | 2,953
Commercial Real Estate Loans |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 4,692 | 5,291 | 4,591
Provision for Loan Losses | 17,645 | (308) | 729
Recoveries | 129 | 29 | 20
Loans Charged-off | (36) | (320) | (49)
Ending Balance | 29,878 | 4,692 | 5,291
Agricultural Loans |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 5,315 | 5,776 | 4,894
Provision for Loan Losses | (125) | (461) | 862
Recoveries | 0 | 0 | 20
Loans Charged-off | 0 | 0 | 0
Ending Balance | 6,756 | 5,315 | 5,776
Home Equity Loans |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 200 | 229 | 330
Provision for Loan Losses | 66 | (27) | (52)
Recoveries | 0 | 8 | 12
Loans Charged-off | (67) | (10) | (61)
Ending Balance | 996 | 200 | 229
Consumer Loans |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 434 | 420 | 298
Provision for Loan Losses | 527 | 727 | 608
Recoveries | 354 | 432 | 375
Loans Charged-off | (766) | (1,145) | (861)
Ending Balance | 490 | 434 | 420
Residential Mortgage Loans |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 333 | 472 | 343
Provision for Loan Losses | (95) | (29) | 167
Recoveries | 4 | 7 | 37
Loans Charged-off | (39) | (117) | (75)
Ending Balance | 1,944 | 333 | 472
Unallocated |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning Balance | 505 | 682 | 503
Provision for Loan Losses | 0 | (177) | 179
Recoveries | 0 | 0 | 0
Loans Charged-off | 0 | 0 | 0
Ending Balance | $ 0 | $ 505 | $ 682

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