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SUBORDINATED DEBENTURES AND MANDATORY REDEEMABLE CAPITAL DEBENTURES (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2019
Dec. 31, 2018
Jun. 28, 2007
Debt Instrument [Line Items]        
Notes become redeemable, term 5 years      
Capital securities maturity on September 15, 2037        
Debt Instrument [Line Items]        
Debt issued to investors       $ 12,500,000
Variable rate junior subordinated debentures       $ 12,900,000
Variable rate spread on debt instrument (in percentage)   1.44%    
Variable interest rate during the period   3.33% 4.23%  
Fixed To Floating Subordinated Notes        
Debt Instrument [Line Items]        
Debt issued to investors $ 15,000,000      
Variable rate spread on debt instrument (in percentage) 350.00%      
Interest Rate 5.75%      
Debt Instrument, Frequency of Periodic Payment The subordinated notes have a maturity date of December 22, 2026 and bear interest at the rate of 5.75% per annum, payable quarterly, for the first five years of the term, and then at a variable rate that will reset quarterly to a level equal to the then current 3-month LIBOR plus 350 basis points over the remainder of the term.