Loans and Allowance For Credit Losses Loans (Schedule of Defaults During Stated Period Of Trouble Debt Restructurings) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($) contract
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	1	10
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 361	$ 1,044
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 157
Commercial real estate owner occupied professional & medical [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Commercial real estate owner occupied retail [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Commercial real estate owner occupied other [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 361	$ 0
Commercial real estate non-owner occupied hotels & motels [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Commercial real estate non-owner occupied mini-storage [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Multifamily [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Commercial real estate non-owner occupied retail [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Commercial real estate non-owner occupied other [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 127
Land and Land Improvements [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Construction [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Residential 1-4 family real estate personal residence [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 614
Residential 1-4 family real estate rental - small loan [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 146
Residential 1-4 family real estate rental - large loan [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Mortgage Warehouse Lines [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $	$ 0	$ 0