Loans and Allowance for Loan Losses - Age Analysis of Past Due Loans (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	$ 1,552	$ 2,319
60-89 Days Past Due	563	1,744
90 Days and Greater	9,626	11,164
Total Past Due	11,741	15,227
Current	910,773	887,072
Total ending loans balance	922,514	902,299
Recorded Investment greater than 90 Days and Accruing	0	201
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	614	525
60-89 Days Past Due	233	4
90 Days and Greater	5,684	7,401
Total Past Due	6,531	7,930
Current	407,094	393,661
Total ending loans balance	413,625	401,591
Recorded Investment greater than 90 Days and Accruing	0	0
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	55	0
60-89 Days Past Due	0	18
90 Days and Greater	172	219
Total Past Due	227	237
Current	85,316	88,409
Total ending loans balance	85,543	88,646
Recorded Investment greater than 90 Days and Accruing	0	0
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	267	347
60-89 Days Past Due	63	960
90 Days and Greater	1,668	2,252
Total Past Due	1,998	3,559
Current	68,893	62,948
Total ending loans balance	70,891	66,507
Recorded Investment greater than 90 Days and Accruing	0	158
Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	123	932
60-89 Days Past Due	149	707
90 Days and Greater	1,766	1,078
Total Past Due	2,038	2,717
Current	123,280	120,359
Total ending loans balance	125,318	123,076
Recorded Investment greater than 90 Days and Accruing	0	43
Indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	324	332
60-89 Days Past Due	118	30
90 Days and Greater	28	23
Total Past Due	470	385
Current	212,980	205,938
Total ending loans balance	213,450	206,323
Recorded Investment greater than 90 Days and Accruing
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	169	183
60-89 Days Past Due	0	25
90 Days and Greater	308	191
Total Past Due	477	399
Current	13,210	15,757
Total ending loans balance	13,687	16,156
Recorded Investment greater than 90 Days and Accruing	$ 0	$ 0