ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Loans By Class Modified As Troubled Debt Restructuring (Details) $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($) loan
All Modifications
Financing Receivable, Modifications
Number of Loans \| loan	4
Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan	4
Extension Period or Range (in months)	0 years
Commercial and industrial loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment \| $	$ 6,066
Post-Modification Outstanding Recorded Investment \| $	5,533
Commercial and industrial loans \| Working capital lines of credit loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment \| $	250
Post-Modification Outstanding Recorded Investment \| $	$ 315
Commercial and industrial loans \| Working capital lines of credit loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan	1
Commercial and industrial loans \| Working capital lines of credit loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan	1
Extension Period or Range (in months)	0 years
Commercial and industrial loans \| Non-working capital loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment \| $	$ 4,288
Post-Modification Outstanding Recorded Investment \| $	$ 3,691
Commercial and industrial loans \| Non-working capital loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan	2
Commercial and industrial loans \| Non-working capital loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan	2
Extension Period or Range (in months)	0 years
Commercial and industrial loans \| Owner occupied loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment \| $	$ 1,528
Post-Modification Outstanding Recorded Investment \| $	$ 1,527
Commercial and industrial loans \| Owner occupied loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan	1
Commercial and industrial loans \| Owner occupied loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan	1
Extension Period or Range (in months)	0 years

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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

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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