Related Party Transactions (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
Related Party Transaction [Line Items]
Related party transaction fees for services	$ 746,000	$ 905,000	[1]	$ 1,258,000	[1]
President of Bancorp, Law firm partner [Member] | Law Firm, Bank Partner [Member]
Related Party Transaction [Line Items]
Period for lease agreement with subsidiary	5 years
Number of additional term for which period of lease agreement increase	3
Total lease payments received by the subsidiary	381,000	372,000		375,000
Related party transaction fees for services	$ 683,000	$ 827,000		$ 830,000

[1] Restated