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SECURITIES (Schedule of Securities Pledged to Secure Public Deposits, Repurchase Agreements, and for Other Purposes) (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Available-for-sale Securities [Member]    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value $ 329,915 $ 337,301
Available-for-sale Securities [Member] | Public Deposits [Member]    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 183,813 184,635
Available-for-sale Securities [Member] | Repurchase Agreements [Member]    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 122,562 126,120
Available-for-sale Securities [Member] | Other Purposes [Member]    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 23,540 26,546
Held-to-maturity Securities [Member]    
Schedule of Investments [Line Items]    
Total pledged HTM securities, fair value 211,949 207,140
Held-to-maturity Securities [Member] | Public Deposits [Member]    
Schedule of Investments [Line Items]    
Total pledged HTM securities, fair value $ 211,949 $ 207,140