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FEDERAL HOME LOAN BANK OF BOSTON ADVANCES AND OTHER BORROWED FUNDS (Tables)
12 Months Ended
Dec. 31, 2019
Banking and Thrift, Interest [Abstract]  
Federal Home Loan Bank of Boston advances
   December 31, 2019  December 31, 2018
  Years ended December 31, (dollars in thousands)    Total (1)      Rate (2)      Total (1)      Rate (2)  
 Overnight   $    %  $9,500    2.72%
 2019            36,767    3.19 
 2020    44,899    2.14    14,899    2.18 
 2021    5,988    2.45    5,988    2.45 
 Total   $50,887    2.18%  $67,154    2.94%
(1)Net of modification costs
(2)Weighted average rate based on scheduled maturity dates.