Restriction on Cash and Due From Banks (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Restricted Cash and Cash Equivalents Items [Line Items]
Non-interest Bearing Deposits At Other Institutions	$ 6,909
Cash Balance, Federal Home Loan Bank And Federal Reserve Bank	3,508
Cash Reserve With Federal Reserve Bank	24,181
Interest-bearing Deposits [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash Amount That Exceeded Federally Insured Limits	$ 33,228