Loans and Allowance for Credit Losses (Financing Receivable Credit Quality Indicators) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	$ 1,276,993	$ 1,248,654
Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	1,046,924	1,042,408
Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	200,979	177,994
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	13,648	13,523
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	15,442	14,729
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	109,608	99,829
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	91,507	84,357
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	15,730	13,068
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	2,074	2,404
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	297
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	437,197	442,506
Residential Portfolio Segment [Member] | Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	399,006	404,500
Residential Portfolio Segment [Member] | Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	29,645	29,223
Residential Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	4,550	5,549
Residential Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	3,996	3,234
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	610,889	586,562
Commercial Real Estate Portfolio Segment [Member] | Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	470,751	455,388
Commercial Real Estate Portfolio Segment [Member] | Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	123,013	115,190
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	6,568	4,822
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	10,557	11,162
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	96,905	102,020
Commercial Portfolio Segment [Member] | Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	63,627	80,816
Commercial Portfolio Segment [Member] | Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	32,236	20,130
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	454	746
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	588	328
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	22,394	17,737
Consumer Portfolio Segment [Member] | Pass Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	22,033	17,347
Consumer Portfolio Segment [Member] | Pass Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	355	383
Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	2	2
Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan Risk Rating	$ 4	$ 5