Quarterly report pursuant to Section 13 or 15(d)

SECURITIES (Schedule of Securities Pledged to Secure Public Deposits, Repurchase Agreements, and for Other Purposes) (Details)

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SECURITIES (Schedule of Securities Pledged to Secure Public Deposits, Repurchase Agreements, and for Other Purposes) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Available-for-sale Securities    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value $ 324,011 $ 337,301
Available-for-sale Securities | Public Deposits    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 183,841 184,635
Available-for-sale Securities | Repurchase Agreements    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 116,844 126,120
Available-for-sale Securities | Other Purposes    
Schedule of Investments [Line Items]    
Total pledged AFS securities, fair value 23,326 26,546
Held-to-maturity Securities    
Schedule of Investments [Line Items]    
Total pledged HTM securities, fair value 209,717 207,140
Held-to-maturity Securities | Public Deposits    
Schedule of Investments [Line Items]    
Total pledged HTM securities, fair value $ 209,717 $ 207,140