Loans (Additional Information) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) loan	Jun. 30, 2014 USD ($) loan	Jun. 30, 2015 USD ($) loan	Jun. 30, 2014 USD ($) loan	Dec. 31, 2014 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans modified as troubled debt restructurings | loan	0	0	0	1
Additional lending amount to customers whose loan terms has been modified in troubled debt restructuring	$ 0		$ 0		$ 0
Increase (decrease) in allowance for loan losses	0	$ 0	0	$ 0
Charge-offs due to troubled debt restructurings	0	0	0	0
Carrying amount of consumer mortgage loans secured by residential real estate properties	123,000		123,000		$ 288,000
Troubled Debt Restructuring that Subsequently Defaulted
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in allowance for loan losses	0	0		0
Charge-offs due to troubled debt restructurings	95,000	0	95,000	0
Loans Purchased
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in allowance for loan losses	0	0	0	0
Loan losses reversed	$ 0	$ 0	$ 0	$ 0