Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT SECURITIES (Textual) (Details)

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INVESTMENT SECURITIES (Textual) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Investment Securities (Textual) [Abstract]    
Market value $ 307,502 $ 296,985
Net pre-tax unrealized gain on investment securities 1,633 1,654
Securities with continuous unrealized losses 47,048 50,729
Unrealized losses on securities 700 728
Securities with continuous unrealized losses for less than 12 months 37,975 42,687
Unrealized losses on securities less than 12 month 69 93
Securities with continuous unrealized losses for more than 12 months 9,073 8,042
Unrealized losses on securities 12 month or more 631 635
Investment Securities [Member]
    
Investment Securities (Textual) [Abstract]    
Market value 307,500  
Net pre-tax unrealized gain on investment securities 900  
Securities with continuous unrealized losses 47,000  
Unrealized losses on securities 700  
Securities with continuous unrealized losses for less than 12 months 38,000  
Unrealized losses on securities less than 12 month 100  
Securities with continuous unrealized losses for more than 12 months 8,500  
Unrealized losses on securities 12 month or more 31,000  
Securities with an amortized cost 191,200 152,300
Preferred bank stock [Member]
    
Investment Securities (Textual) [Abstract]    
Securities with continuous unrealized losses, General level of interest rate was lower $ 600