Troubled Debt Restructuring (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commercial and Industrial Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	$ 124	$ 169
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	0
Impaired Financing Receivable, Trouble Debt Structuring, Total	124	169
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts			2
Financing Receivable, Modification, Pre-Modification Recorded Investment			791
Financing Receivable, Modifications, Post-Modifications Recorded Investment			523
Construction And Land Development Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	1,582	1,623
Impaired Financing Receivable, Trouble Debt Structuring, Total	1,582	1,623
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	88	129
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1	4	3
Financing Receivable, Modification, Pre-Modification Recorded Investment	390	5,419	4,925
Financing Receivable, Modifications, Post-Modifications Recorded Investment	387	4,305	4,894
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,197	2,386
Commercial Real Estate Owner Occupied Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	875	899
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	285	1,045
Impaired Financing Receivable, Trouble Debt Structuring, Total	1,160	1,944
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	110	134
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1	4	5
Financing Receivable, Modification, Pre-Modification Recorded Investment	882	3,167	3,127
Financing Receivable, Modifications, Post-Modifications Recorded Investment	882	2,225	2,840
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts			2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			1,172
Commercial Real Estate Other Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	602	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	429	432
Impaired Financing Receivable, Trouble Debt Structuring, Total	1,031	432
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	62	0
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	2	2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	1,037	1,803	1,229
Financing Receivable, Modifications, Post-Modifications Recorded Investment	1,041	1,657	1,229
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	425		1,201
Commercial Real Estate Loans, Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	1,477	899
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	714	1,477
Impaired Financing Receivable, Trouble Debt Structuring, Total	2,191	2,376
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	172	134
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	3	6	6
Financing Receivable, Modification, Pre-Modification Recorded Investment	1,919	4,970	4,356
Financing Receivable, Modifications, Post-Modifications Recorded Investment	1,923	3,882	4,069
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	425		2,373
Residential Real Estate Consumer Mortgage Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	754	819
Impaired Financing Receivable, Trouble Debt Structuring, Total	754	819
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	3	2
Financing Receivable, Modification, Pre-Modification Recorded Investment	849	863
Financing Receivable, Modifications, Post-Modifications Recorded Investment	844	858
Residential Real Estate Investment Property Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	172	188
Impaired Financing Receivable, Trouble Debt Structuring, Total	172	188
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1	2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	172	567	391
Financing Receivable, Modifications, Post-Modifications Recorded Investment	172	563	391
Residential Real Estate Loans, Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	926	1,007
Impaired Financing Receivable, Trouble Debt Structuring, Total	926	1,007
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	4	4	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	1,021	1,430	391
Financing Receivable, Modifications, Post-Modifications Recorded Investment	1,016	1,421	391
Consumer Installment and Revolving Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	0	0
Impaired Financing Receivable, Trouble Debt Structuring, Total	0	0
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0	0
Trouble Debt Restructurings Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	1,601	1,068
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	3,222	4,107
Impaired Financing Receivable, Trouble Debt Structuring, Total	4,823	5,175
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	260	263
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	8	14	12
Financing Receivable, Modification, Pre-Modification Recorded Investment	3,330	11,819	10,463
Financing Receivable, Modifications, Post-Modifications Recorded Investment	3,326	9,608	9,877
Financing Receivable, Modifications, Subsequent Default [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2	1	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,622	$ 2,386	$ 2,373