Loans and Allowance for Loan Losses - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Historical loss measurement period	3 years
Bank wide delinquency of loans in percentage	1.64%	1.69%
Bank wide delinquency of loans, 30 to 59 days delinquent, percentage	0.25%	0.26%
Bank wide delinquency of loans, 60 to 89 days delinquent, percentage	0.25%	0.19%
Allocated reserves of nonaccrual TDR loans	$ 40
Additional commitments to lend	$ 628
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Time period of repayment based on delinquency period one	59 days
Time period of repayment based on delinquency period two	89 days
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Time period of repayment based on delinquency period one	30 days
Time period of repayment based on delinquency period two	60 days
Time period of repayment based on delinquency period three	90 days