Loans and Allowance for Loan Losses (Impaired Loans By Class) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Unpaid Principal Balance [Abstract]
Total:	$ 8,367	$ 8,367	$ 9,453
Recorded Investment [Abstract]
Total:	7,356	7,356	8,590
Related Allowance	249	249	962
Average Recorded Investment [Abstract]
Total:	7,600	7,696	8,898
Interest Income Recognized [Abstract]
Total:	73	225	383
Consumer Installment
Unpaid Principal Balance [Abstract]
Total:	9	9	0
Recorded Investment [Abstract]
Total:	9	9	0
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
Total:		10	0
Interest Income Recognized [Abstract]
Total:		0	0
Commercial
Unpaid Principal Balance [Abstract]
Total:	383	383	1,535
Recorded Investment [Abstract]
Total:	238	238	1,316
Related Allowance	0	0	650
Average Recorded Investment [Abstract]
Total:		270	1,485
Interest Income Recognized [Abstract]
Total:		17	85
Commercial Real Estate
Unpaid Principal Balance [Abstract]
Total:	3,167	3,167	2,976
Recorded Investment [Abstract]
Total:	3,093	3,093	2,926
Related Allowance	161	161	193
Average Recorded Investment [Abstract]
Total:		3,115	2,965
Interest Income Recognized [Abstract]
Total:		82	105
Construction and Farmland
Unpaid Principal Balance [Abstract]
Total:	309	309	332
Recorded Investment [Abstract]
Total:	256	256	281
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
Total:		268	297
Interest Income Recognized [Abstract]
Total:		19	27
Residential Real Estate
Unpaid Principal Balance [Abstract]
Total:	4,499	4,499	4,610
Recorded Investment [Abstract]
Total:	3,760	3,760	4,067
Related Allowance	88	88	119
Average Recorded Investment [Abstract]
Total:		4,033	4,151
Interest Income Recognized [Abstract]
Total:		107	166
All Other Loans
Unpaid Principal Balance [Abstract]
Total:	0	0	0
Recorded Investment [Abstract]
Total:	0	0	0
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
Total:		0	0
Interest Income Recognized [Abstract]
Total:		0	0
With No Related Allowance [Member]
Unpaid Principal Balance [Abstract]
With no related allowance:	4,900	4,900	4,822
Recorded Investment [Abstract]
With no related allowance:	3,942	3,942	4,015
Average Recorded Investment [Abstract]
With no related allowance:		4,254	4,177
Interest Income Recognized [Abstract]
With no related allowance:		114	171
With No Related Allowance [Member] | Commercial - Non Real Estate Commercial And Industrial
Unpaid Principal Balance [Abstract]
With no related allowance:	383	383	564
Recorded Investment [Abstract]
With no related allowance:	238	238	356
Average Recorded Investment [Abstract]
With no related allowance:		270	422
Interest Income Recognized [Abstract]
With no related allowance:		17	25
With No Related Allowance [Member] | Commercial Real Estate Owner Occupied
Unpaid Principal Balance [Abstract]
With no related allowance:	370	370	0
Recorded Investment [Abstract]
With no related allowance:	361	361	0
Average Recorded Investment [Abstract]
With no related allowance:		362	0
Interest Income Recognized [Abstract]
With no related allowance:		4	0
With No Related Allowance [Member] | Commercial Real Estate Non-Owner Occupied
Unpaid Principal Balance [Abstract]
With no related allowance:	411	411	558
Recorded Investment [Abstract]
With no related allowance:	339	339	501
Average Recorded Investment [Abstract]
With no related allowance:		342	511
Interest Income Recognized [Abstract]
With no related allowance:		0	4
With No Related Allowance [Member] | Construction And Farmland Commercial
Unpaid Principal Balance [Abstract]
With no related allowance:	309	309	332
Recorded Investment [Abstract]
With no related allowance:	256	256	281
Average Recorded Investment [Abstract]
With no related allowance:		268	297
Interest Income Recognized [Abstract]
With no related allowance:		19	27
With No Related Allowance [Member] | Consumer Installment
Unpaid Principal Balance [Abstract]
With no related allowance:	9	9	0
Recorded Investment [Abstract]
With no related allowance:	9	9	0
Average Recorded Investment [Abstract]
With no related allowance:		10	0
Interest Income Recognized [Abstract]
With no related allowance:		0	0
With No Related Allowance [Member] | Residential Equity Lines
Unpaid Principal Balance [Abstract]
With no related allowance:	278	278	468
Recorded Investment [Abstract]
With no related allowance:	71	71	92
Average Recorded Investment [Abstract]
With no related allowance:		73	93
Interest Income Recognized [Abstract]
With no related allowance:		1	0
With No Related Allowance [Member] | Residential Single Family
Unpaid Principal Balance [Abstract]
With no related allowance:	2,772	2,772	2,616
Recorded Investment [Abstract]
With no related allowance:	2,300	2,300	2,499
Average Recorded Investment [Abstract]
With no related allowance:		2,553	2,565
Interest Income Recognized [Abstract]
With no related allowance:		56	101
With No Related Allowance [Member] | Residential Multifamily
Unpaid Principal Balance [Abstract]
With no related allowance:	368	368	284
Recorded Investment [Abstract]
With no related allowance:	368	368	286
Average Recorded Investment [Abstract]
With no related allowance:		376	289
Interest Income Recognized [Abstract]
With no related allowance:		17	14
With No Related Allowance [Member] | All Other Loans
Unpaid Principal Balance [Abstract]
With no related allowance:	0	0	0
Recorded Investment [Abstract]
With no related allowance:	0	0	0
Average Recorded Investment [Abstract]
With no related allowance:		0	0
Interest Income Recognized [Abstract]
With no related allowance:		0	0
With An Allowance Recorded [Member]
Unpaid Principal Balance [Abstract]
With an allowance recorded:	3,467	3,467	4,631
Recorded Investment [Abstract]
With an allowance recorded:	3,414	3,414	4,575
Related Allowance	249	249	962
Average Recorded Investment [Abstract]
With an allowance recorded:		3,442	4,721
Interest Income Recognized [Abstract]
With an allowance recorded:		111	212
With An Allowance Recorded [Member] | Commercial - Non Real Estate Commercial And Industrial
Unpaid Principal Balance [Abstract]
With an allowance recorded:	0	0	971
Recorded Investment [Abstract]
With an allowance recorded:	0	0	960
Related Allowance	0	0	650
Average Recorded Investment [Abstract]
With an allowance recorded:		0	1,063
Interest Income Recognized [Abstract]
With an allowance recorded:		0	60
With An Allowance Recorded [Member] | Commercial Real Estate Non-Owner Occupied
Unpaid Principal Balance [Abstract]
With an allowance recorded:	2,386	2,386	2,418
Recorded Investment [Abstract]
With an allowance recorded:	2,393	2,393	2,425
Related Allowance	161	161	193
Average Recorded Investment [Abstract]
With an allowance recorded:		2,411	2,454
Interest Income Recognized [Abstract]
With an allowance recorded:		78	101
With An Allowance Recorded [Member] | Construction And Farmland Commercial
Unpaid Principal Balance [Abstract]
With an allowance recorded:	0	0	0
Recorded Investment [Abstract]
With an allowance recorded:	0	0	0
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
With an allowance recorded:		0	0
Interest Income Recognized [Abstract]
With an allowance recorded:		0	0
With An Allowance Recorded [Member] | Consumer Installment
Unpaid Principal Balance [Abstract]
With an allowance recorded:	0	0	0
Recorded Investment [Abstract]
With an allowance recorded:	0	0	0
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
With an allowance recorded:		0	0
Interest Income Recognized [Abstract]
With an allowance recorded:		0	0
With An Allowance Recorded [Member] | Residential Equity Lines
Unpaid Principal Balance [Abstract]
With an allowance recorded:	0	0	0
Recorded Investment [Abstract]
With an allowance recorded:	0	0	0
Related Allowance	0	0	0
Average Recorded Investment [Abstract]
With an allowance recorded:		0	0
Interest Income Recognized [Abstract]
With an allowance recorded:		0	0
With An Allowance Recorded [Member] | Residential Single Family
Unpaid Principal Balance [Abstract]
With an allowance recorded:	1,081	1,081	1,242
Recorded Investment [Abstract]
With an allowance recorded:	1,021	1,021	1,190
Related Allowance	88	88	119
Average Recorded Investment [Abstract]
With an allowance recorded:		1,031	1,204
Interest Income Recognized [Abstract]
With an allowance recorded:		33	51
With An Allowance Recorded [Member] | All Other Loans
Unpaid Principal Balance [Abstract]
With an allowance recorded:	0	0	0
Recorded Investment [Abstract]
With an allowance recorded:	0	0	0
Related Allowance	$ 0	0	0
Average Recorded Investment [Abstract]
With an allowance recorded:		0	0
Interest Income Recognized [Abstract]
With an allowance recorded:		$ 0	$ 0