LOANS - Loans that were modified as troubled debt restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of loans \| loan	11	10
Pre-Modification Outstanding Recorded Investment	$ 3,779	$ 3,271
Post-Modification Outstanding Recorded Investment	$ 3,534	$ 2,801
Number of loans \| loan	2	5
Recorded investment	$ 1,566	$ 1,370
1-to-4 family residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans \| loan	3	1
Pre-Modification Outstanding Recorded Investment	$ 232	$ 409
Post-Modification Outstanding Recorded Investment	$ 208	$ 389
Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Number of loans \| loan	1	3
Pre-Modification Outstanding Recorded Investment	$ 752	$ 1,283
Post-Modification Outstanding Recorded Investment	$ 687	$ 895
Number of loans \| loan		1
Recorded investment		$ 334
Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of loans \| loan	1
Pre-Modification Outstanding Recorded Investment	$ 260
Post-Modification Outstanding Recorded Investment	$ 259
Commercial and industrial Other [Member]
Financing Receivable, Modifications [Line Items]
Number of loans \| loan	6	6
Pre-Modification Outstanding Recorded Investment	$ 2,535	$ 1,579
Post-Modification Outstanding Recorded Investment	$ 2,380	$ 1,517
Number of loans \| loan	2	4
Recorded investment	$ 1,566	$ 1,036

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- Definition

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

+ 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.

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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=118936363&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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