Loans and Allowance for Loan Losses (Credit Quality Information By Class) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	$ 611,556	$ 598,845
Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	500,216	484,520
Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	75,954	72,724
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	28,460	35,232
Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	6,713	6,148
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	213	221
Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Performing
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	8,045	8,466
Nonperforming
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	11	4
Commercial - Non Real Estate Commercial And Industrial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	34,798	33,086
Commercial - Non Real Estate Commercial And Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	30,323	28,699
Commercial - Non Real Estate Commercial And Industrial | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	2,941	2,292
Commercial - Non Real Estate Commercial And Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	505	995
Commercial - Non Real Estate Commercial And Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	1,029	1,100
Commercial - Non Real Estate Commercial And Industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Commercial - Non Real Estate Commercial And Industrial | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0
Commercial Real Estate Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	135,899	136,309
Commercial Real Estate Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	113,775	110,418
Commercial Real Estate Owner Occupied | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	17,649	16,665
Commercial Real Estate Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	4,437	9,187
Commercial Real Estate Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	38	39
Commercial Real Estate Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Commercial Real Estate Owner Occupied | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Commercial Real Estate Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	127,958	129,286
Commercial Real Estate Non-Owner Occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	104,592	106,658
Commercial Real Estate Non-Owner Occupied | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	15,703	17,139
Commercial Real Estate Non-Owner Occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	5,677	3,397
Commercial Real Estate Non-Owner Occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	1,986	2,092
Commercial Real Estate Non-Owner Occupied | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Commercial Real Estate Non-Owner Occupied | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Construction And Farmland Residential
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	6,361	6,706
Construction And Farmland Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	4,999	2,295
Construction And Farmland Residential | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	1,362	1,120
Construction And Farmland Residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	3,291
Construction And Farmland Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Construction And Farmland Residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Construction And Farmland Residential | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Construction And Farmland Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	62,267	55,220
Construction And Farmland Commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	20,788	16,682
Construction And Farmland Commercial | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	25,140	22,533
Construction And Farmland Commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	16,001	15,658
Construction And Farmland Commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	338	347
Construction And Farmland Commercial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Construction And Farmland Commercial | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Equity Lines
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	33,621	32,815
Residential Equity Lines | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	32,299	31,813
Residential Equity Lines | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	1,236	910
Residential Equity Lines | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Equity Lines | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	16	16
Residential Equity Lines | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	70	76
Residential Equity Lines | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Single Family
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	193,051	189,046
Residential Single Family | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	176,708	172,360
Residential Single Family | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	11,433	11,567
Residential Single Family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	1,840	2,704
Residential Single Family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	2,927	2,270
Residential Single Family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	143	145
Residential Single Family | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Multifamily
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	9,485	7,923
Residential Multifamily | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	8,635	7,160
Residential Multifamily | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	471	479
Residential Multifamily | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Multifamily | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	379	284
Residential Multifamily | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
Residential Multifamily | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
All Other Loans
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	8,116	8,454
All Other Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	8,097	8,435
All Other Loans | Pass Monitored
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	19	19
All Other Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
All Other Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
All Other Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	0	0
All Other Loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Financing Receivables	$ 0	$ 0