Cash and Due from Banks	3 Months Ended
Cash and Due from Banks	Mar. 31, 2012
Cash and Cash Equivalents [Abstract]
Cash and Due from Banks	Cash and Due from Banks The Bank is required to maintain certain average reserve balances with the Board of Governors of the Federal Reserve System. Such reserve balances amounted to $4.0 million at both March 31, 2012 and December 31, 2011 and are included in cash and due from banks in the Consolidated Statements of Condition. As of March 31, 2012 and December 31, 2011, cash and due from banks included interest-bearing deposits in other banks of $33.2 million and $41.6 million, respectively.

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

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