Loans and Allowance for Loan Losses - Additional Information (Details) - Jun. 30, 2015 - USD ($) $ in Thousands	Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold Period Past Due for Write-off of Financing Receivable	90 days
Historical loss measurement period	3 years
Allocated reserves of nonaccrual TDR loans	$ 0
Additional commitments to lend	$ 623
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
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