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LOANS AND LEASES (Schedule of Loan Balances by Pool Segment and Portfolio Class) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Total loans	$ 5,816,761	$ 5,510,956
Total loans including net deferred costs	$ 5,819,037	$ 5,512,326
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	$ 5,816,761	$ 5,510,956
Net deferred costs	2,276	1,370
Total loans including net deferred costs	5,819,037	5,512,326
Construction [Member]
Total loans	17,928	11,204
Construction [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 17,928	$ 11,204
Construction [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	0.31%	0.20%
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	$ 636,253	$ 609,038
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 636,253	$ 609,038
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)	10.94%	11.05%
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	$ 1,794,854	$ 1,799,754
Total loans including net deferred costs	1,794,854	1,799,754
Residential Portfolio Segment [Member] | Multifamily Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,794,854	$ 1,799,754
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)	30.86%	32.66%
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans including net deferred costs	$ 52,434	$ 42,327
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	55,050	45,307
Residential Portfolio Segment [Member] | Junior Lien [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 55,050	$ 45,307
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)	0.95%	0.82%
Commercial Real Estate Portfolio Segment [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 264,095	$ 275,089
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)	4.54%	4.99%
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	$ 264,095	$ 275,089
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	1,001,995	978,436
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,001,995	$ 978,436
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)	17.22%	17.75%
Commercial Portfolio Segment [Member] | Construction [Member]
Total loans	$ 17,928	$ 11,204
Total loans including net deferred costs	0	0
Consumer and Other [Member]
Total loans	142,730	80,165
Consumer and Other [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 142,730	$ 80,165
Consumer and Other [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	2.45%	1.46%
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,630,826	$ 1,489,466
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	28.04%	27.03%
Commercial and Industrial [Member] | Commercial Portfolio Segment [Member]
Total loans	$ 1,630,826	$ 1,489,466
Lease Financing [Member]
Total loans	273,030	222,497
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 273,030	$ 222,497
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	4.69%	4.04%

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