Allowance for Credit Losses (Collateral Dependent Loans) (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Threshold balance for collateral-dependent loans to be individually reviewed for impairment	$ 500,000
Collateral-Dependant Loans	62,370,000	$ 58,825,000
Net Realizable Value of Collateral	$ 94,886,000	$ 81,272,000
Collateral Coverage	152.10%	138.20%
Allowance for Credit Losses	$ 230,000	$ 131,000
Collateral-dependent nonaccrual loans with no allowance	59,200,000	57,500,000
Non-PCD Loans | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	25,854,000	16,772,000
Net Realizable Value of Collateral	$ 35,256,000	$ 23,625,000
Collateral Coverage	136.40%	140.90%
Allowance for Credit Losses	$ 230,000	$ 0
Non-PCD Loans | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	16,622,000
Net Realizable Value of Collateral	$ 25,135,000
Collateral Coverage	151.20%
Allowance for Credit Losses	$ 0
PCD Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	19,894,000	19,042,000
Net Realizable Value of Collateral	$ 34,495,000	$ 27,872,000
Collateral Coverage	173.40%	146.40%
Allowance for Credit Losses	$ 0	$ 0
Construction and land development | Non-PCD Loans | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	1,425,000	1,424,000
Net Realizable Value of Collateral	$ 1,976,000	$ 1,795,000
Collateral Coverage	138.70%	126.10%
Allowance for Credit Losses	$ 0	$ 0
Owner occupied commercial mortgage | Non-PCD Loans | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	11,288,000	9,792,000
Net Realizable Value of Collateral	$ 15,591,000	$ 14,253,000
Collateral Coverage	138.10%	145.60%
Allowance for Credit Losses	$ 0	$ 0
Non-owner occupied commercial mortgage | Non-PCD Loans | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	5,405,000	5,556,000
Net Realizable Value of Collateral	$ 8,017,000	$ 7,577,000
Collateral Coverage	148.30%	136.40%
Allowance for Credit Losses	$ 0	$ 0
Commercial and industrial | Non-PCD Loans | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	7,736,000
Net Realizable Value of Collateral	$ 9,672,000
Collateral Coverage	125.00%
Allowance for Credit Losses	$ 230,000
Residential mortgage | Non-PCD Loans | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	15,237,000	23,011,000
Net Realizable Value of Collateral	$ 23,411,000	$ 29,775,000
Collateral Coverage	153.60%	129.40%
Allowance for Credit Losses	$ 0	$ 131,000
Revolving mortgage | Non-PCD Loans | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-Dependant Loans	1,385,000
Net Realizable Value of Collateral	$ 1,724,000
Collateral Coverage	124.50%
Allowance for Credit Losses	$ 0