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SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE [Abstract]    
Year-end balance $ 20,428 $ 22,062
Average balance during the year $ 21,704 $ 22,343
Average interest rate during the year 0.32% 0.14%
Maximum month-end balance during the year $ 23,020 $ 25,067
Weighted average interest rate at year-end 0.49% 0.14%