Loans (Additional Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Specific reserves to customers whose loan terms have been modified in troubled debt restructurings	$ 40			$ 40
Charge-offs due to troubled debt restructurings				0	108
Allowance for Loan and Lease Losses, Period Increase (Decrease)	(141)	280	20	(80)	20
Troubled Debt Restructuring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs due to troubled debt restructurings	0		0	0	0
Allowance for Loan and Lease Losses, Period Increase (Decrease)	$ 0		$ 0	$ (210)	$ 0