LOANS (Schedule of Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Total loans	$ 3,795,230	$ 3,702,532
Lease Financing [Member]
Total loans	151,189	90,052
Agricultural Sector [Member]
Total loans	152	160
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,531	7,073
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	592,283	605,569
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	59,929	67,497
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,285,816	1,388,958
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	901,820	874,098
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	479,763	316,294
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	88	92
Consumer and Other Loans [Member]
Total loans	67,489	99,247
Pass
Total loans	3,708,692	3,611,411
Pass | Lease Financing [Member]
Total loans	151,189	90,052
Pass | Agricultural Sector [Member]
Total loans	152	160
Pass | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,487	7,021
Pass | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	582,172	594,846
Pass | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	59,663	67,470
Pass | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,275,518	1,371,825
Pass | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	242,898	249,003
Pass | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	851,037	827,558
Pass | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	471,323	306,341
Pass | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	0	0
Pass | Consumer and Other Loans [Member]
Total loans	67,253	97,135
Special Mention [Member]
Total loans	34,155	49,415
Special Mention [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	952	866
Special Mention [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	6,444	16,755
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	574	837
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	19,051	23,377
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	7,046	7,488
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	88	92
Substandard [Member]
Total loans	48,930	41,706
Substandard [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	44	52
Substandard [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	9,159	9,857
Substandard [Member] | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	266	27
Substandard [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	3,854	378
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	5,698	3,652
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	28,279	23,163
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	1,394	2,465
Substandard [Member] | Consumer and Other Loans [Member]
Total loans	236	$ 2,112
Doubtful [Member]
Total loans	3,453
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	$ 3,453