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Loans and Allowance for Loan Losses (Schedule of Loan Maturity Distribution by Type and Related Interest Rate) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	$ 194,424	$ 187,173
Total gross loans, net of deferred fees, After one but within five years	696,243	719,369
Total gross loans, net of deferred fees, After five years	1,293,015	1,236,325
Total gross loans, net of deferred fees	2,183,682	2,142,867
Loans maturing after one year with: fixed interest rates	1,636,382	1,590,171
Loans maturing after one year with: floating interest rates	352,876	365,523
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	168,040	160,077
Total gross loans, net of deferred fees, After one but within five years	609,587	628,024
Total gross loans, net of deferred fees, After five years	610,956	599,554
Total gross loans, net of deferred fees	1,388,583	1,387,655
Commercial Loan [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	20,043	21,824
Total gross loans, net of deferred fees, After one but within five years	10,372	15,785
Total gross loans, net of deferred fees, After five years	21,581	23,858
Total gross loans, net of deferred fees	51,996	61,467
Commercial Loan [Member] | Owner Occupied Re [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	24,523	22,232
Total gross loans, net of deferred fees, After one but within five years	134,934	136,031
Total gross loans, net of deferred fees, After five years	289,048	275,057
Total gross loans, net of deferred fees	448,505	433,320
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	46,417	39,359
Total gross loans, net of deferred fees, After one but within five years	328,193	335,249
Total gross loans, net of deferred fees, After five years	209,577	210,661
Total gross loans, net of deferred fees	584,187	585,269
Commercial Loan [Member] | Business Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	77,057	76,662
Total gross loans, net of deferred fees, After one but within five years	136,088	140,959
Total gross loans, net of deferred fees, After five years	90,750	89,978
Total gross loans, net of deferred fees	303,895	307,599
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	26,384	27,096
Total gross loans, net of deferred fees, After one but within five years	86,656	91,345
Total gross loans, net of deferred fees, After five years	682,059	636,771
Total gross loans, net of deferred fees	795,099	755,212
Consumer Loan [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	802	1,629
Total gross loans, net of deferred fees, After one but within five years	1,361	1,234
Total gross loans, net of deferred fees, After five years	42,007	37,662
Total gross loans, net of deferred fees	44,170	40,525
Consumer Loan [Member] | Real Estate Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	13,740	14,205
Total gross loans, net of deferred fees, After one but within five years	51,884	54,863
Total gross loans, net of deferred fees, After five years	508,917	467,243
Total gross loans, net of deferred fees	574,541	536,311
Consumer Loan [Member] | Home Equity Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	3,637	4,824
Total gross loans, net of deferred fees, After one but within five years	22,883	23,835
Total gross loans, net of deferred fees, After five years	127,637	128,298
Total gross loans, net of deferred fees	154,157	156,957
Consumer Loan [Member] | Other Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans, net of deferred fees, One year or less	8,205	6,438
Total gross loans, net of deferred fees, After one but within five years	10,528	11,413
Total gross loans, net of deferred fees, After five years	3,498	3,568
Total gross loans, net of deferred fees	$ 22,231	$ 21,419

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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