LOANS AND CREDIT QUALITY - Loan Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Commercial business \| Multifamily \| Significant Payment Delay
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 1,915	$ 0
% of Total Class of Financing Receivable	0.06%	0.00%
Commercial business \| Commercial business \| Significant Payment Delay
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 1,446	$ 839
% of Total Class of Financing Receivable	0.46%	0.23%
Commercial business \| Commercial business \| Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 1,536	$ 9,850
% of Total Class of Financing Receivable	0.49%	2.74%
Commercial business \| Commercial business \| Interest Rate Reduction and Significant Payment Delay
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 4,420	$ 0
% of Total Class of Financing Receivable	1.42%	0.00%
Commercial business \| Commercial business \| Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 410	$ 0
% of Total Class of Financing Receivable	0.13%	0.00%
Commercial business \| Non-owner occupied CRE \| Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 19,331	$ 16,230
% of Total Class of Financing Receivable	3.39%	2.53%
Commercial business \| CRE construction \| Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 3,821
% of Total Class of Financing Receivable	0.00%	0.68%
Commercial business \| CRE construction \| Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 3,821	$ 0
% of Total Class of Financing Receivable	0.81%	0.00%
Commercial business \| Owner occupied CRE \| Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 254	$ 0
% of Total Class of Financing Receivable	0.07%	0.00%
Consumer Portfolio Segment \| Single family \| Significant Payment Delay
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 85	$ 1,082
% of Total Class of Financing Receivable	0.01%	0.09%
Consumer Portfolio Segment \| Single family \| Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 273
% of Total Class of Financing Receivable	0.00%	0.02%
Consumer Portfolio Segment \| Single family \| Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 3,668	$ 2,526
% of Total Class of Financing Receivable	0.33%	0.22%
Consumer Portfolio Segment \| Single family \| Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 191
% of Total Class of Financing Receivable	0.00%	0.02%

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
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-Publisher FASB
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