Annual report pursuant to Section 13 and 15(d)

INVESTMENT SECURITIES - Narrative (Details)

v3.8.0.1
INVESTMENT SECURITIES - Narrative (Details)
$ in Millions
Dec. 31, 2017
USD ($)
Securities
Dec. 31, 2016
USD ($)
Investments, Debt and Equity Securities [Abstract]    
Securities pledged to secure public deposits | $ $ 328.1 $ 332.7
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 532  
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss | $ $ 4.6  
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 159  
U.S. Treasury [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 67