Loans and Allowance for Credit Losses on Loans (Credit Quality and Origination by Portfolio Segment Analysis) (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 716,230
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	527,204
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	381,600
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	286,533
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	263,051
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	721,682
Financing Receivable, Revolving	271,502
Financing Receivable, Revolving, Converted to Term Loan	52,020
Gross loans	3,219,822
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	143,773
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	224,273
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	146,622
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	124,070
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	162,607
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	296,630
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	1,097,975
Commercial Real Estate - Non-Owner Occupied | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	138,010
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	224,148
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	144,552
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	119,409
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	157,588
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	264,253
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	1,047,960
Commercial Real Estate - Non-Owner Occupied | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	5,739
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4,256
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,497
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	847
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	14,339
Commercial Real Estate - Non-Owner Occupied | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	24
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	125
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,070
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	405
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,522
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	31,530
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	35,676
Commercial Real Estate - Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	35,948
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	29,217
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	53,787
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	47,527
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	25,507
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	79,509
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	271,495
Commercial Real Estate - Owner Occupied | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	35,948
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	29,217
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	48,312
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	47,065
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	25,507
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	76,098
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	262,147
Commercial Real Estate - Owner Occupied | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	4,584
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,513
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	6,097
Commercial Real Estate - Owner Occupied | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	891
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	462
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,898
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	3,251
Commercial Real Estate - Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	54,153
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	73,897
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	41,212
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	30,453
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,947
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	54,350
Financing Receivable, Revolving	72,490
Financing Receivable, Revolving, Converted to Term Loan	38,992
Gross loans	381,494
Commercial | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	53,966
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	72,863
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	40,688
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	25,478
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,788
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	51,869
Financing Receivable, Revolving	72,425
Financing Receivable, Revolving, Converted to Term Loan	37,026
Gross loans	370,103
Commercial | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	22
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	313
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4,924
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	117
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	400
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	867
Gross loans	6,643
Commercial | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,012
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	211
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	51
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	42
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,081
Financing Receivable, Revolving	65
Financing Receivable, Revolving, Converted to Term Loan	1,099
Gross loans	4,748
Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
SBA PPP Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	135,095
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	135,095
SBA PPP Portfolio Segment | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	135,095
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	135,095
SBA PPP Portfolio Segment | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
SBA PPP Portfolio Segment | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
SBA PPP Portfolio Segment | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	339,834
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	183,877
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	119,602
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	79,646
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	57,269
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	271,542
Financing Receivable, Revolving	3,028
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	1,054,798
Residential real estate | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	339,834
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	183,877
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	119,426
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	79,159
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	57,269
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	266,324
Financing Receivable, Revolving	3,028
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	1,048,917
Residential real estate | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	398
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	398
Residential real estate | Substandard (Grade 8)
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	176
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	487
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,820
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	5,483
Residential real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	0
Home equity
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	855
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	9,415
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	17,281
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,478
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,339
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	17,871
Financing Receivable, Revolving	195,306
Financing Receivable, Revolving, Converted to Term Loan	13,028
Gross loans	258,573
Home equity | Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	855
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	9,415
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	17,281
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,478
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,339
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	17,664
Financing Receivable, Revolving	194,065
Financing Receivable, Revolving, Converted to Term Loan	12,480
Gross loans	256,577
Home equity | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	207
Financing Receivable, Revolving	1,241
Financing Receivable, Revolving, Converted to Term Loan	548
Gross loans	1,996
Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	6,572
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	6,525
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	3,096
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,359
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	382
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,780
Financing Receivable, Revolving	678
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	20,392
Consumer | Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	6,572
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	6,525
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	3,096
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,359
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	378
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,780
Financing Receivable, Revolving	678
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	20,388
Consumer | Non-performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Financing Receivable, Revolving, Converted to Term Loan	0
Gross loans	$ 4