LOANS AND ALLOWANCE FOR CREDIT LOSSES - Gross Charge-offs (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 0	$ 0
2022	(1,828)	(7,561)
2021	(480)	(1,629)
2020	(5,997)	(6,428)
2019	0	0
Prior	(3,339)	(5,642)
Total	(11,644)	(21,260)
Commercial \| Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	(1,828)	(7,545)
2021	(368)	(1,453)
2020	(5,997)	(5,997)
2019	0	0
Prior	(3,170)	(4,079)
Total	(11,363)	(19,074)
Commercial \| SBA
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	(64)
2020	0	0
2019	0	0
Prior	(169)	(1,186)
Total	(169)	(1,250)
Commercial \| Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023		0
2022		0
2021		0
2020		0
2019		0
Prior		(300)
Total		(300)
Consumer \| Other Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	(16)
2021	(112)	(112)
2020	0	(59)
2019	0	0
Prior	0	(77)
Total	$ (112)	(264)
Consumer \| Single Family Residential Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2023		0
2022		0
2021		0
2020		(372)
2019		0
Prior		0
Total		$ (372)

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
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