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LOANS - Modifications by Class (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) modification	Dec. 31, 2018 USD ($) modification	Dec. 31, 2017 USD ($) modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of modifications (modification) | modification	13	10	35
Pre-Modification Outstanding Recorded Investment	$ 2,063	$ 2,685	$ 17,640
Post-Modification Outstanding Recorded Investment	$ 2,063	$ 2,685	$ 15,896
Commercial loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of modifications (modification) | modification	3	5	16
Pre-Modification Outstanding Recorded Investment	$ 420	$ 2,061	$ 13,680
Post-Modification Outstanding Recorded Investment	$ 420	$ 2,061	$ 11,953
Commercial and industrial | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of modifications (modification) | modification	6	1	12
Pre-Modification Outstanding Recorded Investment	$ 1,434	$ 43	$ 3,507
Post-Modification Outstanding Recorded Investment	$ 1,434	$ 43	$ 3,507
Residential | 1-4 family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of modifications (modification) | modification	2	4	4
Pre-Modification Outstanding Recorded Investment	$ 98	$ 581	$ 331
Post-Modification Outstanding Recorded Investment	$ 98	$ 581	$ 314
Consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of modifications (modification) | modification	2	0	3
Pre-Modification Outstanding Recorded Investment	$ 111	$ 0	$ 122
Post-Modification Outstanding Recorded Investment	$ 111	$ 0	$ 122

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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 http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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

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

+ 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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