Loans and Leases (Information Related to Loans Modified in Troubled Debt Restructuring, by Class) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts \| contract	4
Recorded investment (as of period end)	$ 1,804
Increase in allowance (as of period end)	$ 519
Commercial And Industrial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts \| contract	2
Recorded investment (as of period end)	$ 206
Increase in allowance (as of period end)	$ 66
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts \| contract	2
Recorded investment (as of period end)	$ 1,598
Increase in allowance (as of period end)	$ 453

Amount of increase (decrease) of allowance reserve for credit loss.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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+ References

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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