Annual report pursuant to Section 13 and 15(d)

INVESTMENT SECURITIES - Narrative (Details)

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INVESTMENT SECURITIES - Narrative (Details)
 3 Months Ended 12 Months Ended
Sep. 30, 2013
USD ($)
Dec. 31, 2016
USD ($)
Securities
Dec. 31, 2015
USD ($)
Investments, Debt and Equity Securities [Abstract]      
Transfer available for sale to held to maturity, fair value $ 63,000,000    
Transfer available for sale to held to maturity, unrealized loss $ (523,000)    
Transfer available for sale to held to maturity, unrealized loss included in accumulated other comprehensive income   $ 270,000  
Securities pledged to secure public deposits   $ 332,700,000 $ 370,100,000
Schedule of Available-for-sale Securities [Line Items]      
Available-for-sale Securities and Held-to-maturity investments in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Total | Securities   396  
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   $ 2,300,000  
Ginnie Mae mortgage-backed securities (GNMA), U.S. Treasuries, or SBA securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Available-for-sale Securities and Held-to-maturity investments in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Total | Securities   115  
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   $ 1,700,000  
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   640,000  
U.S. Treasury [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   930,000  
U.S. Small Business Administration [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   $ 150,000