LOANS - Troubled Debt Restructurings (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2020 USD ($) loan	Jun. 30, 2019 loan	Jun. 30, 2020 USD ($) loan	Jun. 30, 2019 loan	Dec. 31, 2019 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| loan	2	0	2	0
Pre-Modification Outstanding Recorded Investment	$ 2,672,000		$ 2,672,000
Post-Modification Outstanding Recorded Investment	2,672,000		$ 2,672,000
Modifications, suspension of loan payments, term			6 months
Allowance for credit loss, increase from troubled debt restructuring	0		$ 0
Impaired, troubled debt restructuring, write-down	$ 0		$ 0
Subsequent default, number of loans \| loan	0	0	0	0
Single family residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	$ 3,953,000		$ 3,953,000		$ 1,305,000
Related allowance	$ 25,000		$ 25,000		$ 25,000

Financing Receivable, Allowance For Credit Loss, Increase From Troubled Debt Restructuring

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- Definition

Financing Receivable, Modifications, Suspension Of Loan Payments, Term

+ References

No definition available.

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- Definition

Financing Receivable, Troubled Debt Restructuring, Related Allowance

+ References

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

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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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- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ 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=121611835&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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