LOANS AND CREDIT QUALITY - Loan Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Commercial business \| Commercial business \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 839	$ 0
% of Total Class of Financing Receivable	0.23%	0.00%
Commercial business \| Commercial business \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 9,850	$ 1,562
% of Total Class of Financing Receivable	2.74%	0.43%
Commercial business \| Commercial business \| Interest Rate Reduction and Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 459
% of Total Class of Financing Receivable	0.00%	0.13%
Commercial business \| Non-owner occupied CRE \| Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 16,230	$ 0
% of Total Class of Financing Receivable	2.53%	0.00%
Commercial business \| CRE construction \| Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 3,821	$ 0
% of Total Class of Financing Receivable	0.68%	0.00%
Consumer loans \| Single family \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 1,082	$ 1,377
% of Total Class of Financing Receivable	0.09%	0.14%
Consumer loans \| Single family \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 273	$ 269
% of Total Class of Financing Receivable	0.02%	0.03%
Consumer loans \| Single family \| Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 814
% of Total Class of Financing Receivable	0.00%	0.08%
Consumer loans \| Single family \| Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 2,526	$ 13,742
% of Total Class of Financing Receivable	0.22%	1.36%
Consumer loans \| Single family \| Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 191	$ 6,500
% of Total Class of Financing Receivable	0.02%	0.64%
Consumer loans \| Home equity and other \| Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 69
% of Total Class of Financing Receivable	0.00%	0.02%
Consumer loans \| Home equity and other \| Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 51
% of Total Class of Financing Receivable	0.00%	0.01%

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+ References

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34

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