Allowance For Loan Losses (Summary Of Allowance For Loan Losses By Loan Segment And Class) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 22,838	$ 20,081	$ 21,066	$ 19,144
Charge-offs	(4,367)	(127)	(12,053)	(253)
Recoveries	17	20	40	33
Provision	2,550	1,200	11,985	2,250
Ending Balance	21,038	21,174	21,038	21,174
Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	22,202	19,258	20,537	17,890
Charge-offs	(4,361)	0	(12,042)	(46)
Recoveries	3	3	13	6
Provision	2,582	1,187	11,918	2,598
Ending Balance	20,426	20,448	20,426	20,448
Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	636	526	528	535
Charge-offs	(6)	(127)	(11)	(207)
Recoveries	14	17	27	27
Provision	(24)	153	76	214
Ending Balance	620	569	620	569
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	0	297	1	719
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(8)	(140)	(9)	(562)
Ending Balance	(8)	157	(8)	157
Builder & Developer [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,226	2,967	2,263	2,835
Charge-offs	(674)	0	(844)	0
Recoveries	0	0	0	0
Provision	824	(259)	957	(127)
Ending Balance	2,376	2,708	2,376	2,708
Commercial Real Estate Investor [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,682	2,652	2,565	2,636
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	50	(84)	167	(68)
Ending Balance	2,732	2,568	2,732	2,568
Residential Real Estate Investor [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	4,759	4,010	4,632	3,945
Charge-offs	0	0	0	0
Recoveries	3	3	6	6
Provision	5	(125)	129	(63)
Ending Balance	4,767	3,888	4,767	3,888
Hotel/Motel [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,056	799	742	732
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	474	(53)	788	14
Ending Balance	1,530	746	1,530	746
Wholesale & Retail [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	4,558	1,801	3,575	1,813
Charge-offs	(3,116)	0	(3,116)	0
Recoveries	0	0	7	0
Provision	956	1,681	1,932	1,669
Ending Balance	2,398	3,482	2,398	3,482
Manufacturing [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,316	1,266	1,252	1,287
Charge-offs	(392)	0	(392)	0
Recoveries	0	0	0	0
Provision	(23)	89	41	68
Ending Balance	901	1,355	901	1,355
Agriculture [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,140	578	1,304	579
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(28)	(22)	(192)	(23)
Ending Balance	1,112	556	1,112	556
Residential Mortgage [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	235	132	158	126
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(6)	5	71	11
Ending Balance	229	137	229	137
Home Equity [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	304	195	203	265
Charge-offs	0	(97)	0	(117)
Recoveries	0	1	0	2
Provision	(7)	173	94	122
Ending Balance	297	272	297	272
Other [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	4,465	5,185	4,204	4,063
Charge-offs	(179)	0	(7,690)	(46)
Recoveries	0	0	0	0
Provision	324	(40)	8,096	1,128
Ending Balance	4,610	5,145	4,610	5,145
Other [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	97	199	167	144
Charge-offs	(6)	(30)	(11)	(90)
Recoveries	14	16	27	25
Provision	(11)	(25)	(89)	81
Ending Balance	$ 94	$ 160	$ 94	$ 160

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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