Loans Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) contract	Dec. 31, 2019 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	68
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 8,073
Financing Receivable, Troubled Debt Restructuring, Postmodification	8,108
Financing Receivable, Troubled Debt Restructuring	$ 7,877
Number of contracts modified as a TDR that subsequently defaulted | contract	2
Recorded investment in loans modified as a TDR that subsequently defaulted	$ 69	$ 0
Impact on allowance for loan losses for loans modified as a TDR that subsequently defaulted	—
Additional commitments to lend funds to debtors whose terms have been modified in a TDR	$ 0
Paycheck Protection Program
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans and Leases Receivable, Gross	$ 488,900
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	5
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 2,294
Financing Receivable, Troubled Debt Restructuring, Postmodification	2,294
Total Recorded Investment	$ 2,217
Number of contracts modified as a TDR that subsequently defaulted | contract	1
Recorded investment in loans modified as a TDR that subsequently defaulted	$ 54
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring, Premodification	3,820
Financing Receivable, Troubled Debt Restructuring, Postmodification	3,820
Financing Receivable, Troubled Debt Restructuring	$ 3,736
Home equity lines of credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	16
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 1,388
Financing Receivable, Troubled Debt Restructuring, Postmodification	1,423
Financing Receivable, Troubled Debt Restructuring	$ 1,406
Consumer, indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	7
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 123
Financing Receivable, Troubled Debt Restructuring, Postmodification	123
Financing Receivable, Troubled Debt Restructuring	$ 116
Consumer, direct
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	27
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 349
Financing Receivable, Troubled Debt Restructuring, Postmodification	349
Financing Receivable, Troubled Debt Restructuring	$ 313
Number of contracts modified as a TDR that subsequently defaulted | contract	1
Recorded investment in loans modified as a TDR that subsequently defaulted	$ 15
Deposit account overdrafts
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	7
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 99
Financing Receivable, Troubled Debt Restructuring, Postmodification	99
Financing Receivable, Troubled Debt Restructuring	$ 89
Total loans, at amortized cost
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	34
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 448
Financing Receivable, Troubled Debt Restructuring, Postmodification	448
Financing Receivable, Troubled Debt Restructuring	$ 402
Financial Asset Originated [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		29
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 926
Financing Receivable, Troubled Debt Restructuring, Postmodification		929
Financing Receivable, Troubled Debt Restructuring		$ 878
Financial Asset Originated [Member] | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	6	2
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 38
Financing Receivable, Troubled Debt Restructuring, Postmodification		38
Financing Receivable, Troubled Debt Restructuring		$ 32
Financial Asset Originated [Member] | Home equity lines of credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		3
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 437
Financing Receivable, Troubled Debt Restructuring, Postmodification		440
Financing Receivable, Troubled Debt Restructuring		$ 431
Financial Asset Originated [Member] | Consumer, indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		4
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 139
Financing Receivable, Troubled Debt Restructuring, Postmodification		139
Financing Receivable, Troubled Debt Restructuring		$ 136
Financial Asset Originated [Member] | Consumer, direct
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		17
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 260
Financing Receivable, Troubled Debt Restructuring, Postmodification		260
Financing Receivable, Troubled Debt Restructuring		$ 234
Financial Asset Originated [Member] | Deposit account overdrafts
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		3
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 52
Financing Receivable, Troubled Debt Restructuring, Postmodification		52
Financing Receivable, Troubled Debt Restructuring		$ 45
Financial Asset Originated [Member] | Total loans, at amortized cost
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		20
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 312
Financing Receivable, Troubled Debt Restructuring, Postmodification		312
Financing Receivable, Troubled Debt Restructuring		$ 279
Acquired Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		64
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 4,023
Financing Receivable, Troubled Debt Restructuring, Postmodification		3,999
Financing Receivable, Troubled Debt Restructuring		$ 3,785
Acquired Loans | Construction Loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		3
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 101
Financing Receivable, Troubled Debt Restructuring, Postmodification		76
Financing Receivable, Troubled Debt Restructuring		$ 76
Acquired Loans | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		5
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 1,557
Financing Receivable, Troubled Debt Restructuring, Postmodification		1,557
Financing Receivable, Troubled Debt Restructuring		$ 1,464
Acquired Loans | Home equity lines of credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		38
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 2,069
Financing Receivable, Troubled Debt Restructuring, Postmodification		2,069
Financing Receivable, Troubled Debt Restructuring		$ 1,967
Acquired Loans | Consumer, indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		8
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 172
Financing Receivable, Troubled Debt Restructuring, Postmodification		173
Financing Receivable, Troubled Debt Restructuring		$ 164
Acquired Loans | Deposit account overdrafts
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		10
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 124
Financing Receivable, Troubled Debt Restructuring, Postmodification		124
Total Recorded Investment		$ 114