ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Loans by Class Modified as Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Modifications
Number of Loans \| loan	8
Pre-Modification Outstanding Recorded Investment		$ 6,066
Post-Modification Outstanding Recorded Investment		$ 5,533
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 days
Consumer 1-4 Family Mortgage
Financing Receivable, Modifications
Number of Loans \| loan	2
Pre-Modification Outstanding Recorded Investment	$ 217
Post-Modification Outstanding Recorded Investment	$ 217
Consumer 1-4 Family Mortgage \| Minimum
Financing Receivable, Modifications
Extension Period or Range (in months)	172 years
Consumer 1-4 Family Mortgage \| Maximum
Financing Receivable, Modifications
Extension Period or Range (in months)	204 years
Consumer 1-4 Family Mortgage \| Closed end first mortgage loans
Financing Receivable, Modifications
Number of Loans \| loan	2
Pre-Modification Outstanding Recorded Investment	$ 217
Post-Modification Outstanding Recorded Investment	$ 217
Commercial and Industrial \| Working capital lines of credit loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment		$ 250
Post-Modification Outstanding Recorded Investment		$ 315
Commercial and Industrial \| Working capital lines of credit loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan		1
Commercial and Industrial \| Working capital lines of credit loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan		1
Extension Period or Range (in months)		0 days
Commercial and Industrial \| Non-working capital loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment		$ 4,288
Post-Modification Outstanding Recorded Investment		$ 3,691
Commercial and Industrial \| Non-working capital loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan		2
Commercial and Industrial \| Non-working capital loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan		2
Extension Period or Range (in months)		0 days
Commercial Real Estate and Multi-family Residential \| Owner occupied loans
Financing Receivable, Modifications
Pre-Modification Outstanding Recorded Investment		$ 1,528
Post-Modification Outstanding Recorded Investment		$ 1,527
Commercial Real Estate and Multi-family Residential \| Owner occupied loans \| All Modifications
Financing Receivable, Modifications
Number of Loans \| loan		1
Commercial Real Estate and Multi-family Residential \| Owner occupied loans \| Modified Repayment Terms
Financing Receivable, Modifications
Number of Loans \| loan		1
Extension Period or Range (in months)		0 days

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- Definition

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+ References

No definition available.

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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 https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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

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- Definition

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

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