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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Goodwill [Roll Forward]      
Beginning of year $ 21,824 $ 21,824  
Acquired goodwill 0 0  
End of year 21,824 21,824 $ 21,824
Balance Acquired 11,608 11,608  
Accumulated Amortization 8,663 7,677  
Aggregate amortization expense 986 1,136 $ 1,310
Remaining estimated aggregate amortization expense [Abstract]      
2017 859    
2018 734    
2019 609    
2020 484    
2021 259    
Total 2,945    
Core deposit intangibles      
Goodwill [Roll Forward]      
Balance Acquired 5,975 5,975  
Accumulated Amortization 4,689 4,057  
Other customer relationship intangibles      
Goodwill [Roll Forward]      
Balance Acquired 5,633 5,633  
Accumulated Amortization $ 3,974 $ 3,620