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LOANS (Schedule of Loan Balances by Pool Segment and Portfolio Class) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Total loans	$ 5,510,956	$ 5,426,123
Total loans including net deferred costs	$ 5,512,326	$ 5,429,325
Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	100.00%	100.00%
Current Expected Credit Loss Methodology [Member]
Total loans	$ 5,510,956	$ 5,426,123
Net deferred costs	1,370	3,202
Total loans including net deferred costs	5,512,326	5,429,325
Construction [Member]
Total loans	11,204	17,987
Construction [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 11,204	$ 17,987
Construction [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	0.20%	0.33%
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	$ 609,038	$ 585,126
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 609,038	$ 585,126
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	11.05%	10.78%
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	$ 1,799,754	$ 1,836,390
Total loans including net deferred costs	1,799,754	1,836,390
Residential Portfolio Segment [Member] | Multifamily Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,799,754	$ 1,836,390
Residential Portfolio Segment [Member] | Multifamily Property [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	32.66%	33.85%
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	$ 45,307	$ 40,203
Residential Portfolio Segment [Member] | Junior Lien [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 45,307	$ 40,203
Residential Portfolio Segment [Member] | Junior Lien [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	0.82%	0.74%
Commercial Real Estate Portfolio Segment [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 275,089	$ 255,110
Commercial Real Estate Portfolio Segment [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	4.99%	4.70%
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	$ 978,436	$ 1,061,197
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 978,436	$ 1,061,197
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	17.75%	19.56%
Consumer and Other Loans [Member]
Total loans	$ 80,165	$ 63,906
Consumer and Other Loans [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 80,165	$ 63,906
Consumer and Other Loans [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	1.46%	1.18%
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,489,466	$ 1,314,781
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	27.03%	24.23%
Lease Financing [Member]
Total loans	$ 222,497	$ 251,423
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 222,497	$ 251,423
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	4.04%	4.63%

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