Allowance For Loan Losses (Summary Of Allowance For Loan Losses By Loan Segment And Class) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 21,038	$ 21,174	$ 21,066	$ 19,144
Charge-offs	(2,069)	(97)	(14,122)	(350)
Recoveries	10	87	50	120
Provision	1,930	0	13,915	2,250
Ending Balance	20,909	21,164	20,909	21,164
Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	20,426	20,448	20,537	17,890
Charge-offs	(2,008)	(32)	(14,050)	(78)
Recoveries	3	3	16	9
Provision	1,884	109	13,802	2,707
Ending Balance	20,305	20,528	20,305	20,528
Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	620	569	528	535
Charge-offs	(61)	(65)	(72)	(272)
Recoveries	7	84	34	111
Provision	72	(64)	148	150
Ending Balance	638	524	638	524
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	(8)	157	1	719
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(26)	(45)	(35)	(607)
Ending Balance	(34)	112	(34)	112
Builder & Developer [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,376	2,708	2,263	2,835
Charge-offs	0	(8)	(844)	(8)
Recoveries	0	0	0	0
Provision	(254)	(495)	703	(622)
Ending Balance	2,122	2,205	2,122	2,205
Commercial Real Estate Investor [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,732	2,568	2,565	2,636
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(56)	60	111	(8)
Ending Balance	2,676	2,628	2,676	2,628
Residential Real Estate Investor [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	4,767	3,888	4,632	3,945
Charge-offs	(1,641)	0	(1,641)	0
Recoveries	3	3	9	9
Provision	807	33	936	(30)
Ending Balance	3,936	3,924	3,936	3,924
Hotel/Motel [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,530	746	742	732
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	6	2	794	16
Ending Balance	1,536	748	1,536	748
Wholesale & Retail [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,398	3,482	3,575	1,813
Charge-offs	0	(24)	(3,116)	(24)
Recoveries	0	0	7	0
Provision	21	144	1,953	1,813
Ending Balance	2,419	3,602	2,419	3,602
Manufacturing [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	901	1,355	1,252	1,287
Charge-offs	0	0	(392)	0
Recoveries	0	0	0	0
Provision	29	(74)	70	(6)
Ending Balance	930	1,281	930	1,281
Agriculture [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,112	556	1,304	579
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	38	819	(154)	796
Ending Balance	1,150	1,375	1,150	1,375
Residential Mortgage [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	229	137	158	126
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	19	13	90	24
Ending Balance	248	150	248	150
Home Equity [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	297	272	203	265
Charge-offs	(59)	(30)	(59)	(147)
Recoveries	0	69	0	71
Provision	56	(97)	150	25
Ending Balance	294	214	294	214
Other [Member] \| Commercial Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	4,610	5,145	4,204	4,063
Charge-offs	(367)	0	(8,057)	(46)
Recoveries	0	0	0	0
Provision	1,293	(380)	9,389	748
Ending Balance	5,536	4,765	5,536	4,765
Other [Member] \| Total Consumer Related Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	94	160	167	144
Charge-offs	(2)	(35)	(13)	(125)
Recoveries	7	15	34	40
Provision	(3)	20	(92)	101
Ending Balance	$ 96	$ 160	$ 96	$ 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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