Allowance for Loan Losses (Schedule of Aging of Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Past Due and Non-Accrual Loans
Total Past Due	$ 5,886	$ 4,485
Current	515,877	532,705
Total Loans	521,763	537,190
90 Days Past Due and Still Accruing	617	895
30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	4,460	1,934
60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	446	1,234
90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	980	1,317
Commercial and industrial - organic [Member]
Past Due and Non-Accrual Loans
Total Past Due	172	222
Current	39,204	41,304
Total Loans	39,376	41,526
90 Days Past Due and Still Accruing
Commercial and industrial - organic [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	172	50
Commercial and industrial - organic [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due		172
Commercial and industrial - organic [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial and industrial - government guaranteed [Member]
Past Due and Non-Accrual Loans
Total Past Due	548	548
Current	34,595	30,819
Total Loans	35,143	31,367
90 Days Past Due and Still Accruing	548	548
Commercial and industrial - government guaranteed [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial and industrial - government guaranteed [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial and industrial - government guaranteed [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	548	548
Commercial and industrial - syndicated [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	12,091	12,134
Total Loans	12,091	12,134
90 Days Past Due and Still Accruing
Commercial and industrial - syndicated [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial and industrial - syndicated [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial and industrial - syndicated [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Residential construction [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	1,021	1,552
Total Loans	1,021	1,552
90 Days Past Due and Still Accruing
Residential construction [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Residential construction [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Residential construction [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial construction [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	3,663	5,078
Total Loans	3,663	5,078
90 Days Past Due and Still Accruing
Commercial construction [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial construction [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial construction [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Land and land development [Member]
Past Due and Non-Accrual Loans
Total Past Due	15	16
Current	9,621	10,878
Total Loans	9,636	10,894
90 Days Past Due and Still Accruing		15
Land and land development [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due		1
Land and land development [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	15
Land and land development [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due		15
1-4 family residential, first lien, investment [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	40,807	40,311
Total Loans	40,807	40,311
90 Days Past Due and Still Accruing
1-4 family residential, first lien, investment [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, first lien, investment [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, first lien, investment [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, first lien, owner occupied [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	16,304	16,775
Total Loans	16,304	16,775
90 Days Past Due and Still Accruing
1-4 family residential, first lien, owner occupied [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, first lien, owner occupied [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, first lien, owner occupied [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, junior lien [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	2,894	3,169
Total Loans	2,894	3,169
90 Days Past Due and Still Accruing
1-4 family residential, junior lien [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, junior lien [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential, junior lien [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Home equity lines of credit, first lien [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	8,544	8,325
Total Loans	8,544	8,325
90 Days Past Due and Still Accruing
Home equity lines of credit, first lien [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Home equity lines of credit, first lien [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Home equity lines of credit, first lien [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Farm [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	9,298	10,397
Total Loans	9,298	10,397
90 Days Past Due and Still Accruing
Farm [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Farm [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Farm [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Multifamily [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	24,432	27,328
Total Loans	24,432	27,328
90 Days Past Due and Still Accruing
Multifamily [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Multifamily [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Multifamily [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial owner occupied [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	95,286	93,800
Total Loans	95,286	93,800
90 Days Past Due and Still Accruing
Commercial owner occupied [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial owner occupied [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial owner occupied [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial non-owner occupied [Member]
Past Due and Non-Accrual Loans
Total Past Due	3,750	75
Current	113,140	123,139
Total Loans	116,890	123,214
90 Days Past Due and Still Accruing
Commercial non-owner occupied [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	3,750	75
Commercial non-owner occupied [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Commercial non-owner occupied [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Consumer revolving credit [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	24,341	21,540
Total Loans	24,341	21,540
90 Days Past Due and Still Accruing
Consumer revolving credit [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Consumer revolving credit [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Consumer revolving credit [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Consumer all other credit [Member]
Past Due and Non-Accrual Loans
Total Past Due	24	603
Current	4,172	4,927
Total Loans	4,196	5,530
90 Days Past Due and Still Accruing
Consumer all other credit [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due		4
Consumer all other credit [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	24	599
Consumer all other credit [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Student Loans Purchased [Member]
Past Due and Non-Accrual Loans
Total Past Due	1,377	2,067
Current	48,541	52,624
Total Loans	49,918	54,691
90 Days Past Due and Still Accruing	69	332
Student Loans Purchased [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	538	850
Student Loans Purchased [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	407	463
Student Loans Purchased [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due	432	754
Home equity lines of credit, junior lien [Member]
Past Due and Non-Accrual Loans
Total Past Due
Current	9,472	10,912
Total Loans	9,472	10,912
90 Days Past Due and Still Accruing
Home equity lines of credit, junior lien [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Home equity lines of credit, junior lien [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
Home equity lines of credit, junior lien [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential - purchased [Member]
Past Due and Non-Accrual Loans
Total Past Due		954
Current	18,451	17,693
Total Loans	18,451	18,647
90 Days Past Due and Still Accruing
1-4 family residential - purchased [Member] | 30-59 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due		954
1-4 family residential - purchased [Member] | 60-89 Days Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due
1-4 family residential - purchased [Member] | 90 Days or More Past Due [Member]
Past Due and Non-Accrual Loans
Total Past Due