Impaired Loans and Allowance for Loan Losses - Modified Loans (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 Number	Sep. 30, 2013 Number
Financing Receivable, Modifications [Line Items]
Number of Contracts	6	18
Pre-Modification Outstanding Recorded Investment	$ 4,969	$ 4,542
Post-Modification Outstanding Recorded Investment	4,596	4,036
Specific Reserve Recorded	0	0
Valuation Allowance Recorded	373	506
Construction Land Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		14
Post-Modification Outstanding Recorded Investment		14
Specific Reserve Recorded		0
Valuation Allowance Recorded		0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	5	8
Pre-Modification Outstanding Recorded Investment	669	990
Post-Modification Outstanding Recorded Investment	621	865
Specific Reserve Recorded	0	0
Valuation Allowance Recorded	48	125
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	7
Pre-Modification Outstanding Recorded Investment	4,300	3,421
Post-Modification Outstanding Recorded Investment	3,975	3,059
Specific Reserve Recorded	0	0
Valuation Allowance Recorded	325	362
Commercial and Financial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		25
Post-Modification Outstanding Recorded Investment		24
Specific Reserve Recorded		0
Valuation Allowance Recorded		1
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Outstanding Recorded Investment		92
Post-Modification Outstanding Recorded Investment		74
Specific Reserve Recorded		0
Valuation Allowance Recorded		$ 18