Loans and Allowance for Loan Losses - Troubled Debt Restructured Loans (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014 Loans	Jun. 30, 2013 Loans	Jun. 30, 2014 Loans	Jun. 30, 2013 Loans	Dec. 31, 2013
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment	$ 0	$ 499,000	$ 477,000	$ 889,000
Financing Receivable, Modifications, Number of Contracts Modified During Period	0	1	1	4
Total amount of troubled debt restructured loans outstanding	14,200,000		14,200,000		21,500,000
Allowance for troubled debt restructured loans	393,912		393,912		1,200,000
Amount of troubled debt restructured loans accruing interest	11,000,000		11,000,000		15,300,000
Number of troubled debt restructured loans with a payment default during the period		0	0	3
Recorded investment of troubled debt restructured loans with payment default during period		0		714,000
Extended Payment Terms
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		499,000		889,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		1		3
Real Estate Loans | Principal Payment Reducation | Non-owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment	0		477,000
Financing Receivable, Modifications, Number of Contracts Modified During Period	0		1
Real Estate Loans | Extended Payment Terms | Construction Loans
Troubled Debt Restructurings
Number of troubled debt restructured loans with a payment default during the period		0		2
Recorded investment of troubled debt restructured loans with payment default during period		0		593,000
Real Estate Loans | Extended Payment Terms | Owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		499,000		724,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		1		2
Real Estate Loans | Extended Payment Terms | Non-owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		0		165,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		0		1
Number of troubled debt restructured loans with a payment default during the period		0		1
Recorded investment of troubled debt restructured loans with payment default during period		$ 0		$ 121,000