ESTIMATED FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Significant Other Observable Inputs (Level 2)
Assets measured at fair value on recurring basis
Available for sale securities	$ 449,493
Recurring basis \| Carrying Value
Assets measured at fair value on recurring basis
Available for sale securities	449,493	441,439
Derivatives	(34)
Recurring basis \| Carrying Value \| U.S. GSE securities
Assets measured at fair value on recurring basis
Available for sale securities	109,910	131,674
Recurring basis \| Carrying Value \| State and municipal obligations
Assets measured at fair value on recurring basis
Available for sale securities	63,869	54,219
Recurring basis \| Carrying Value \| U.S. GSE residential mortgage-backed securities
Assets measured at fair value on recurring basis
Available for sale securities	31,914	70,984
Recurring basis \| Carrying Value \| U.S. GSE residential collateralized mortgage obligations
Assets measured at fair value on recurring basis
Available for sale securities	221,539	179,325
Recurring basis \| Carrying Value \| U.S. GSE commercial collateralized mortgage obligations
Assets measured at fair value on recurring basis
Available for sale securities	9,384	5,237
Recurring basis \| Carrying Value \| Non Agency commercial mortgage-backed securities
Assets measured at fair value on recurring basis
Available for sale securities	5,062
Recurring basis \| Carrying Value \| Other Asset backed securities
Assets measured at fair value on recurring basis
Available for sale securities	7,815
Recurring basis \| Significant Other Observable Inputs (Level 2)
Assets measured at fair value on recurring basis
Available for sale securities	449,493	441,439
Derivatives	(34)
Recurring basis \| Significant Other Observable Inputs (Level 2) \| U.S. GSE securities
Assets measured at fair value on recurring basis
Available for sale securities	109,910	131,674
Recurring basis \| Significant Other Observable Inputs (Level 2) \| State and municipal obligations
Assets measured at fair value on recurring basis
Available for sale securities	63,869	54,219
Recurring basis \| Significant Other Observable Inputs (Level 2) \| U.S. GSE residential mortgage-backed securities
Assets measured at fair value on recurring basis
Available for sale securities	31,914	70,984
Recurring basis \| Significant Other Observable Inputs (Level 2) \| U.S. GSE residential collateralized mortgage obligations
Assets measured at fair value on recurring basis
Available for sale securities	221,539	179,325
Recurring basis \| Significant Other Observable Inputs (Level 2) \| U.S. GSE commercial collateralized mortgage obligations
Assets measured at fair value on recurring basis
Available for sale securities	9,384	5,237
Recurring basis \| Significant Other Observable Inputs (Level 2) \| Non Agency commercial mortgage-backed securities
Assets measured at fair value on recurring basis
Available for sale securities	5,062
Recurring basis \| Significant Other Observable Inputs (Level 2) \| Other Asset backed securities
Assets measured at fair value on recurring basis
Available for sale securities	$ 7,815

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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