Related Party Transactions (Details) (Executive Officers and Directors [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Executive Officers and Directors [Member]
Related Party Transaction [Line Items]
Deposits from executive officers and directors	$ 6,471	$ 3,855	$ 3,470
Loans to executive officers and directors [Roll Forward]
Outstanding balance, beginning of year	2,331	533	526
Credit granted	4,025	5,373	438
Repayments / Reductions	(4,270)	(3,575)	(431)
Outstanding balance, end of year	$ 2,086	$ 2,331	$ 533