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LOANS, Purchased Impaired Loans (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Purchased loans [Abstract]      
Total carrying amount $ 4,045   $ 4,776
Contractual principal balance 5,646   6,728
Carrying amount, net of allowance 4,045   4,676
Increase in loan allowance related to acquisitions 0 $ 50  
Accretable Yield [Roll Forward]      
Beginning Balance 754 1,208  
New loans purchased 0 0  
Accretion of income (141) (201)  
Loans placed on non-accrual (52) 0  
Income recognized upon full repayment (38) (197)  
Reclassifications from non-accretable difference 0 0  
Disposals 0 0  
Ending Balance 523 $ 810  
Residential Real Estate [Member]      
Purchased loans [Abstract]      
Total carrying amount 1,099   1,321
Commercial Real Estate [Member] | Owner Occupied [Member]      
Purchased loans [Abstract]      
Total carrying amount 1,385   1,508
Commercial and Industrial [Member]      
Purchased loans [Abstract]      
Total carrying amount 3   211
Construction and Land [Member]      
Purchased loans [Abstract]      
Total carrying amount 1,274   1,450
All Other [Member]      
Purchased loans [Abstract]      
Total carrying amount $ 284   $ 286