INVESTMENT SECURITIES (Details Textual) (USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Other Than Temporary Impairment, Not Credit Loss, Net Of Tax, Debt Securities	$ 1,600,000		$ 1,600,000
Available-For-Sale Securities, Amortized Cost Basis	694,595,000		694,595,000		717,593,000
Investment Securities Provided As Collateral To Federal Home Loan Bank	288,800,000		288,800,000		291,000,000
Available-For-Sale Securities, Gross Unrealized Losses	(6,108,000)		(6,108,000)		(6,041,000)
Available-For-Sale Securities, Fair Value Disclosure	708,884,000		708,884,000		729,844,000
Other Than Temporary Impairment, Credit Losses Recognized In Earnings, Period Increase (Decrease)	0	(179,000)	(49,000)	(179,000)
Corporate Debt Securities [Member]
Available-For-Sale Securities, Amortized Cost Basis	14,303,000		14,303,000		14,351,000
Available-For-Sale Securities, Gross Unrealized Losses	(5,925,000)		(5,925,000)		(5,844,000)
Available-For-Sale Securities, Fair Value Disclosure	8,378,000		8,378,000		8,507,000
Four Pooled Trust Preferred Securities [Member] \| Corporate Debt Securities [Member]
Available-For-Sale Securities, Amortized Cost Basis	13,800,000		13,800,000
Available-For-Sale Securities, Gross Unrealized Losses	5,900,000		5,900,000
Available-For-Sale Securities, Fair Value Disclosure	$ 7,900,000		$ 7,900,000

Total of accumulated other comprehensive loss related to that portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized either as available-for-sale or held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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- Definition

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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