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ALLOWANCE FOR LOAN LOSSES (Details 3) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Average impaired balance:      
Average investment in impaired loans $ 1,913 $ 1,074 $ 2,146
Interest income recognized:      
Interest income recognized on a cash basis on impaired loans 62 22 27
Commercial [Member]      
Average impaired balance:      
Average investment in impaired loans 1,075 718 1,271
Interest income recognized:      
Interest income recognized on a cash basis on impaired loans 28 14 10
Commercial loans secured by real estate [Member]      
Average impaired balance:      
Average investment in impaired loans 838 356 866
Interest income recognized:      
Interest income recognized on a cash basis on impaired loans 34 8 17
Consumer [Member]      
Average impaired balance:      
Average investment in impaired loans 0 0 9
Interest income recognized:      
Interest income recognized on a cash basis on impaired loans $ 0 $ 0 $ 0