ALLOWANCE FOR CREDIT LOSSES - Summary of loans by portfolio segment evaluated for impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans
Individually Evaluated	$ 5,110	$ 5,916
Collectively Evaluated	1,545,873	1,554,814
Total	1,550,983	1,560,730
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	13,012	14,154
Total	13,012	14,154
Residential Portfolio Segment \| Residential
Loans
Individually Evaluated	4,240	5,721
Collectively Evaluated	512,514	545,208
Total	516,754	550,929
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	1,842	1,968
Total	1,842	1,968
Residential Portfolio Segment \| Multifamily
Loans
Individually Evaluated	125	146
Collectively Evaluated	666,179	682,418
Total	666,304	682,564
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	6,593	7,046
Total	6,593	7,046
Commercial Real Estate Portfolio Segment \| Commercial real estate
Loans
Individually Evaluated	0	0
Collectively Evaluated	241,711	232,505
Total	241,711	232,505
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	3,660	3,748
Total	3,660	3,748
Construction and Land Portfolio Segment \| Construction
Loans
Individually Evaluated	0	0
Collectively Evaluated	80,081	60,414
Total	80,081	60,414
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	650	1,222
Total	650	1,222
Junior Lien Portfolio Segment \| Junior liens
Loans
Individually Evaluated	44	49
Collectively Evaluated	24,130	22,454
Total	24,174	22,503
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	88	76
Total	88	76
Commercial Portfolio Segment \| Commercial and industrial
Loans
Individually Evaluated	701	0
Collectively Evaluated	13,527	11,768
Total	14,228	11,768
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	153	94
Total	153	94
Consumer Portfolio Segment \| Consumer and other
Loans
Individually Evaluated	0	0
Collectively Evaluated	7,731	47
Total	7,731	47
Allowance for Credit Losses on Loans
Individually Evaluated	0	0
Collectively Evaluated	26	0
Total	$ 26	0
Unallocated Financing Receivables
Loans
Individually Evaluated		0
Collectively Evaluated		0
Total		0
Allowance for Credit Losses on Loans
Individually Evaluated		0
Collectively Evaluated		0
Total		$ 0

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