Loans and Allowance for Loan Losses - Troubled Debt Restructured Loans (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 Loans	Mar. 31, 2013 Loans	Dec. 31, 2013
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment	$ 489,000	$ 390,000
Financing Receivable, Modifications, Number of Contracts Modified During Period	1	2
Total amount of troubled debt restructured loans outstanding	15,600,000		21,500,000
Allowance for troubled debt restructured loans	457,768		1,200,000
Amount of troubled debt restructured loans accruing interest	12,200,000		15,300,000
Number of troubled debt restructured loans with a payment default during the period		4
Recorded investment of troubled debt restructured loans with payment default during period		804,000
Extended Payment Terms
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		390,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		2
Number of troubled debt restructured loans with a payment default during the period		4
Recorded investment of troubled debt restructured loans with payment default during period		804,000
Real Estate Loans | Principal Payment Reducation | Non-owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment	489,000
Financing Receivable, Modifications, Number of Contracts Modified During Period	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		1
Recorded investment of troubled debt restructured loans with payment default during period		500,000
Real Estate Loans | Extended Payment Terms | Owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		224,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		1
Number of troubled debt restructured loans with a payment default during the period		1
Recorded investment of troubled debt restructured loans with payment default during period		93,000
Real Estate Loans | Extended Payment Terms | Non-owner Occupied
Troubled Debt Restructurings
Financing Receivable, Modifications Made During Period, Post-Modification Recorded Investment		166,000
Financing Receivable, Modifications, Number of Contracts Modified During Period		1
Number of troubled debt restructured loans with a payment default during the period		2
Recorded investment of troubled debt restructured loans with payment default during period		$ 211,000