Loans and Allowance for Loan Losses - Age Analysis of Past Due Loans (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	$ 2,102	$ 2,319
60-89 Days Past Due	1,448	1,744
90 Days and Greater	9,829	11,164
Total Past Due	13,379	15,227
Current	893,986	887,072
Total ending loans balance	907,365	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	761	525
60-89 Days Past Due	641	4
90 Days and Greater	6,081	7,401
Total Past Due	7,483	7,930
Current	398,102	393,661
Total ending loans balance	405,585	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	20	0
60-89 Days Past Due	0	18
90 Days and Greater	145	219
Total Past Due	165	237
Current	85,410	88,409
Total ending loans balance	85,575	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	541	347
60-89 Days Past Due	508	960
90 Days and Greater	1,911	2,252
Total Past Due	2,960	3,559
Current	64,409	62,948
Total ending loans balance	67,369	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	434	932
60-89 Days Past Due	130	707
90 Days and Greater	1,563	1,078
Total Past Due	2,127	2,717
Current	121,121	120,359
Total ending loans balance	123,248	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	269	332
60-89 Days Past Due	89	30
90 Days and Greater	22	23
Total Past Due	380	385
Current	212,322	205,938
Total ending loans balance	212,702	206,323
Recorded Investment greater than 90 Days and Accruing
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	77	183
60-89 Days Past Due	80	25
90 Days and Greater	107	191
Total Past Due	264	399
Current	12,622	15,757
Total ending loans balance	12,886	16,156
Recorded Investment greater than 90 Days and Accruing	$ 0	$ 0