LOANS RECEIVABLE AND THE ALLOWANCE FOR CREDIT LOSSES (Troubled Debt Restructuring) (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) contract	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Commitments to advance funds related to TDRs, maximum additional amounts	$ 0		$ 0
Number of Contracts \| contract		0		2
Pre-modification Outstanding Recorded Investment		$ 0		$ 4,796
Post-modification Outstanding Recorded Investment		0		4,796
TDRs Which Incurred a Payment Default	$ 0	$ 0	$ 0	$ 0
Commercial Business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract		0		2
Pre-modification Outstanding Recorded Investment		$ 0		$ 4,796
Post-modification Outstanding Recorded Investment		$ 0		$ 4,796

Financing Receivable, Modifications, Commitments to Advance Funds

No definition available.

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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.

+ Details

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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

+ Details

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- Definition

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

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

+ Details

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