Loans and Allowance For Credit Losses Loans (Schedule of Restructured Trouble Debt Restructuring By Class) (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($) contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	1	13
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 361,000	$ 1,074,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 361,000	$ 1,074,000
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Commercial real estate owner occupied professional & medical [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Commercial real estate owner occupied retail [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Commercial real estate owner occupied other [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	1	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 361,000	$ 325,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 361,000	$ 325,000
Commercial real estate non-owner occupied hotels & motels [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Commercial real estate non-owner occupied mini-storage [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Multifamily [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 35,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 35,000
Commercial real estate non-owner occupied retail [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 162,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 162,000
Commercial real estate non-owner occupied other [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 126,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 126,000
Land and Land Improvements [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Construction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Residential 1-4 family real estate personal residence [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	3
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 151,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 151,000
Residential 1-4 family real estate rental - small loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 259,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 259,000
Residential 1-4 family real estate rental - large loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Mortgage Warehouse Lines [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 16,000
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 16,000