Loans (Summary Of Impaired Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	$ 14,335	$ 7,837
Impaired Loans, With No Allowance, Unpaid Principal	14,766	8,011
Impaired Loans, With A Related Allowance, Recorded Investment	5,619	18,509
Impaired Loans, With A Related Allowance, Unpaid Principal	5,995	19,588
Impaired Loans, With A Related Allowance, Related Allowance	3,289	7,420
Impaired Loans, Total, Recorded Investment	19,954	26,346
Impaired Loans, Total, Unpaid Principal	20,761	27,599
Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	13,411	6,659
Impaired Loans, With No Allowance, Unpaid Principal	13,816	6,826
Impaired Loans, With A Related Allowance, Recorded Investment	5,619	18,509
Impaired Loans, With A Related Allowance, Unpaid Principal	5,995	19,588
Impaired Loans, With A Related Allowance, Related Allowance	3,289	7,420
Impaired Loans, Total, Recorded Investment	19,030	25,168
Impaired Loans, Total, Unpaid Principal	19,811	26,414
Commercial Related Loans [Member] | Builder & Developer [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	579	621
Impaired Loans, With No Allowance, Unpaid Principal	631	651
Impaired Loans, With A Related Allowance, Recorded Investment	0	473
Impaired Loans, With A Related Allowance, Unpaid Principal	0	474
Impaired Loans, With A Related Allowance, Related Allowance	0	238
Impaired Loans, Total, Recorded Investment	579	1,094
Impaired Loans, Total, Unpaid Principal	631	1,125
Commercial Related Loans [Member] | Commercial Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	1,216	1,370
Impaired Loans, With No Allowance, Unpaid Principal	1,221	1,371
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	1,216	1,370
Impaired Loans, Total, Unpaid Principal	1,221	1,371
Commercial Related Loans [Member] | Residential Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	2,653	734
Impaired Loans, With No Allowance, Unpaid Principal	2,681	753
Impaired Loans, With A Related Allowance, Recorded Investment	454	5,037
Impaired Loans, With A Related Allowance, Unpaid Principal	468	5,137
Impaired Loans, With A Related Allowance, Related Allowance	242	1,873
Impaired Loans, Total, Recorded Investment	3,107	5,771
Impaired Loans, Total, Unpaid Principal	3,149	5,890
Commercial Related Loans [Member] | Hotel/Motel [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	0	0
Impaired Loans, With No Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	0	0
Impaired Loans, Total, Unpaid Principal	0	0
Commercial Related Loans [Member] | Wholesale & Retail [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	238	273
Impaired Loans, With No Allowance, Unpaid Principal	238	273
Impaired Loans, With A Related Allowance, Recorded Investment	0	7,184
Impaired Loans, With A Related Allowance, Unpaid Principal	0	7,811
Impaired Loans, With A Related Allowance, Related Allowance	0	2,537
Impaired Loans, Total, Recorded Investment	238	7,457
Impaired Loans, Total, Unpaid Principal	238	8,084
Commercial Related Loans [Member] | Manufacturing [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	0	13
Impaired Loans, With No Allowance, Unpaid Principal	0	13
Impaired Loans, With A Related Allowance, Recorded Investment	0	1,122
Impaired Loans, With A Related Allowance, Unpaid Principal	0	1,220
Impaired Loans, With A Related Allowance, Related Allowance	0	463
Impaired Loans, Total, Recorded Investment	0	1,135
Impaired Loans, Total, Unpaid Principal	0	1,233
Commercial Related Loans [Member] | Agriculture [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	2,313	1,784
Impaired Loans, With No Allowance, Unpaid Principal	2,390	1,791
Impaired Loans, With A Related Allowance, Recorded Investment	1,178	1,058
Impaired Loans, With A Related Allowance, Unpaid Principal	1,218	1,058
Impaired Loans, With A Related Allowance, Related Allowance	534	701
Impaired Loans, Total, Recorded Investment	3,491	2,842
Impaired Loans, Total, Unpaid Principal	3,608	2,849
Commercial Related Loans [Member] | Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	6,412	1,864
Impaired Loans, With No Allowance, Unpaid Principal	6,655	1,974
Impaired Loans, With A Related Allowance, Recorded Investment	3,987	3,635
Impaired Loans, With A Related Allowance, Unpaid Principal	4,309	3,888
Impaired Loans, With A Related Allowance, Related Allowance	2,513	1,608
Impaired Loans, Total, Recorded Investment	10,399	5,499
Impaired Loans, Total, Unpaid Principal	10,964	5,862
Total Consumer Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	924	1,178
Impaired Loans, With No Allowance, Unpaid Principal	950	1,185
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	924	1,178
Impaired Loans, Total, Unpaid Principal	950	1,185
Total Consumer Related Loans [Member] | Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	152	275
Impaired Loans, With No Allowance, Unpaid Principal	152	277
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	152	275
Impaired Loans, Total, Unpaid Principal	152	277
Total Consumer Related Loans [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	575	677
Impaired Loans, With No Allowance, Unpaid Principal	592	677
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	575	677
Impaired Loans, Total, Unpaid Principal	592	677
Total Consumer Related Loans [Member] | Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Allowance, Recorded Investment	197	226
Impaired Loans, With No Allowance, Unpaid Principal	206	231
Impaired Loans, With A Related Allowance, Recorded Investment	0	0
Impaired Loans, With A Related Allowance, Unpaid Principal	0	0
Impaired Loans, With A Related Allowance, Related Allowance	0	0
Impaired Loans, Total, Recorded Investment	197	226
Impaired Loans, Total, Unpaid Principal	$ 206	$ 231