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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, 2026	Dec. 31, 2025
Total loans	$ 6,672,754	$ 6,251,972
Total loans including net deferred costs	$ 6,675,251	$ 6,253,736
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	$ 6,672,754	$ 6,251,972
Net deferred costs	2,497	1,764
Total loans including net deferred costs	6,675,251	6,253,736
Construction [Member]
Total loans	21,466	24,959
Construction [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 21,466	$ 24,959
Construction [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	0.30%	0.40%
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	$ 667,771	$ 632,890
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 667,771	$ 632,890
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)	10.00%	10.10%
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	$ 1,804,380	$ 1,862,592
Total loans including net deferred costs	1,804,380	1,862,592
Residential Portfolio Segment [Member] | Multifamily Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,804,380	$ 1,862,592
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)	27.00%	29.80%
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans including net deferred costs	$ 55,136	$ 59,306
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	57,467	61,420
Residential Portfolio Segment [Member] | Junior Lien [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 57,467	$ 61,420
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)	0.90%	1.00%
Commercial Real Estate Portfolio Segment [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 297,144	$ 289,801
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)	4.50%	4.60%
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	$ 297,144	$ 289,801
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	1,320,989	1,101,082
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,320,989	$ 1,101,082
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)	19.80%	17.60%
Commercial Portfolio Segment [Member] | Construction [Member]
Total loans	$ 21,466	$ 24,959
Total loans including net deferred costs	771	495
Consumer and Other [Member]
Total loans	227,391	189,633
Consumer and Other [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 227,391	$ 189,633
Consumer and Other [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	3.40%	3.00%
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 1,988,934	$ 1,823,557
Commercial and Industrial [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	29.80%	29.20%
Commercial and Industrial [Member] | Commercial Portfolio Segment [Member]
Total loans	$ 1,988,934	$ 1,823,557
Lease Financing [Member]
Total loans	287,212	266,038
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member]
Total loans	$ 287,212	$ 266,038
Lease Financing [Member] | Current Expected Credit Loss Methodology [Member] | Customer Concentration Risk [Member] | Loans and Finance Receivables, Gross [Member]
Total loans (in percent)	4.30%	4.30%

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