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FEDERAL HOME LOAN BANK OF BOSTON ADVANCES AND OTHER BORROWED FUNDS - Federal Home Loan Bank of Boston advances (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Total    
Overnight advances $ 9,500
2019 advances 36,767
2020 advances 44,899 14,899
2021 advances 5,988 5,988
Total advances $ 50,887 $ 67,154
Rate    
Overnight rate 2.72%
2019 rate 3.19%
2020 rate 2.14% 2.18%
2021 rate 2.45% 2.45%
Total weighted average rate 2.18% 2.94%