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Loans and Allowance for Loan Losses (Nonaccrual And Past Due Loans By Class) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 1,484	$ 6,280
Current	580,549	562,958
Total Loans	582,033	569,238
90 or More Days Past Due Still Accruing	18	0
Nonaccrual Loans	1,800	6,339
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	758	1,126
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	330	950
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	396	4,204
Commercial - Non Real Estate Commercial And Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	92	227
Current	38,406	37,200
Total Loans	38,498	37,427
90 or More Days Past Due Still Accruing	0
Nonaccrual Loans	331	594
Commercial - Non Real Estate Commercial And Industrial | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	75
Commercial - Non Real Estate Commercial And Industrial | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	17	10
Commercial - Non Real Estate Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	75	142
Commercial Real Estate Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Current	132,667	127,018
Total Loans	132,667	127,018
Nonaccrual Loans	0	0
Commercial Real Estate Owner Occupied | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Owner Occupied | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Owner Occupied | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	414	368
Current	112,828	112,529
Total Loans	113,242	112,897
Nonaccrual Loans	747	767
Commercial Real Estate Non-Owner Occupied | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	175	0
Commercial Real Estate Non-Owner Occupied | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	239	368
Commercial Real Estate Non-Owner Occupied | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Current	7,288	3,214
Total Loans	7,288	3,214
Nonaccrual Loans	0	0
Construction And Farmland Residential | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	187
Current	49,339	48,953
Total Loans	49,339	49,140
Nonaccrual Loans	0	0
Construction And Farmland Commercial | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	187
Construction And Farmland Commercial | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Commercial | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Consumer Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	18	19
Current	9,453	10,168
Total Loans	9,471	10,187
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	10	13
Consumer Installment | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9	17
Consumer Installment | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Consumer Installment | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	9	2
Residential Equity Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	18	18
Current	31,654	32,820
Total Loans	31,672	32,838
90 or More Days Past Due Still Accruing	18
Nonaccrual Loans	43	44
Residential Equity Lines | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	18
Residential Equity Lines | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Equity Lines | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	18	0
Residential Single Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	702	5,461
Current	185,656	184,911
Total Loans	186,358	190,372
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	669	4,921
Residential Single Family | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	334	829
Residential Single Family | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	74	572
Residential Single Family | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	294	4,060
Residential Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Current	4,030	4,095
Total Loans	4,030	4,095
Nonaccrual Loans	0	0
Residential Multifamily | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Multifamily | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Multifamily | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
All Other Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	240	0
Current	9,228	2,050
Total Loans	9,468	2,050
Nonaccrual Loans	0	0
All Other Loans | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	240	0
All Other Loans | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
All Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 0	$ 0

X

- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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- Definition

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 7A
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 310
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-Section 50
-Paragraph 7
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

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