Loans (Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 1,843,888	$ 1,227,609
Residential real estate and Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	305,776	212,735
Residential real estate and Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	301,610	210,150
Residential real estate and Consumer | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,166	2,585
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	304,088	211,839
Residential real estate | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	299,937	209,270
Residential real estate | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,151	2,569
Commercial real estate and Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,538,112	1,014,874
Commercial real estate and Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,476,483	975,175
Commercial real estate and Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	37,560	17,292
Commercial real estate and Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	18,983	20,569
Commercial real estate and Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,086	1,838
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	730,189	604,646
Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	703,241	591,419
Commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	19,686	8,325
Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	6,723	4,042
Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	539	860
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	807,923	410,228
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	773,242	383,756
Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	17,874	8,967
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	12,260	16,527
Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,547	978
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,688	896
Consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,673	880
Consumer | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 15	$ 16