LOANS AND LEASES (Schedule of Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Total loans	$ 4,025,487	$ 3,924,312
Lease Financing [Member]
Total loans	184,182	172,643
Agricultural Sector [Member]
Total loans	143	149
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,397	7,418
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	599,450	600,891
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	62,522	62,191
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,129,476	1,135,805
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	1,017,505	1,001,918
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	717,851	616,838
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	125	86
Consumer and Other Loans [Member]
Total loans	57,415	65,180
Pass [Member]
Total loans	3,940,581	3,840,333
Pass [Member] | Lease Financing [Member]
Total loans	184,182	172,643
Pass [Member] | Agricultural Sector [Member]
Total loans	143	149
Pass [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,368	7,382
Pass [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	589,731	590,372
Pass [Member] | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	62,500	61,936
Pass [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,127,545	1,130,926
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	242,929	255,417
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	966,813	948,300
Pass [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	701,916	608,262
Pass [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	39	0
Pass [Member] | Consumer and Other Loans [Member]
Total loans	57,415	64,946
Special Mention [Member]
Total loans	28,771	25,714
Special Mention [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	870	943
Special Mention [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,586	3,263
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans		249
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	18,024	20,756
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	8,205	417
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	86	86
Substandard [Member]
Total loans	56,135	58,265
Substandard [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	29	36
Substandard [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	8,849	9,576
Substandard [Member] | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	22	255
Substandard [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	345	1,616
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	6,492	5,527
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	32,668	32,862
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	$ 7,730	8,159
Substandard [Member] | Consumer and Other Loans [Member]
Total loans		$ 234