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BORROWED FUNDS AND SUBORDINATED DEBT - Long term Borrowing Additional Information (Details)	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Rate	1.36%	1.36%
Loans matured in 2020 with a weighted-average rate of 2.71%
Debt Instrument [Line Items]
Rate	2.71%	2.71%
Loans maturing in 2022 with a weighted-average effective rate of 1.40%
Debt Instrument [Line Items]
Rate	1.40%	1.40%
Loans maturing in 2023 with a weighted-average effective rate of 1.44%
Debt Instrument [Line Items]
Rate	1.44%	1.44%
Loans maturing in 2024 with a weighted-average effective rate of 1.06%
Debt Instrument [Line Items]
Rate	1.06%	1.06%
Loan maturing in 2025 with a rate of 4.91%
Debt Instrument [Line Items]
Rate	4.91%	4.91%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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