LOANS (Schedule of Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Total loans	$ 3,719,987	$ 3,702,532
Lease Financing [Member]
Total loans	126,514	90,052
Agricultural Sector [Member]
Total loans	153	160
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,669	7,073
Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	595,086	605,569
Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	55,020	67,497
Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,320,251	1,388,958
Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	892,526	874,098
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	399,828	316,294
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	90	92
Consumer and Other Loans [Member]
Total loans	69,330	99,247
Pass
Total loans	3,637,755	3,611,411
Pass | Lease Financing [Member]
Total loans	126,514	90,052
Pass | Agricultural Sector [Member]
Total loans	153	160
Pass | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	7,623	7,021
Pass | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	585,629	594,846
Pass | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	54,995	67,470
Pass | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	1,311,131	1,371,825
Pass | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	246,745	249,003
Pass | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	845,179	827,558
Pass | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	390,695	306,341
Pass | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	0	0
Pass | Consumer and Other Loans [Member]
Total loans	69,091	97,135
Special Mention [Member]
Total loans	31,016	49,415
Special Mention [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	960	866
Special Mention [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	6,502	16,755
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	1,006	837
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	14,001	23,377
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	8,457	7,488
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Total loans	90	92
Substandard [Member]
Total loans	46,366	41,706
Substandard [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total loans	46	52
Substandard [Member] | Residential Portfolio Segment [Member] | Primary Residential Mortgages [Member]
Total loans	8,497	9,857
Substandard [Member] | Residential Portfolio Segment [Member] | Home Equity Lines of Credit [Member]
Total loans	25	27
Substandard [Member] | Residential Portfolio Segment [Member] | Multifamily Property [Member]
Total loans	2,618	378
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Property [Member]
Total loans	5,769	3,652
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	28,496	23,163
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total loans	676	2,465
Substandard [Member] | Consumer and Other Loans [Member]
Total loans	239	$ 2,112
Doubtful [Member]
Total loans	4,850
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Investment Property [Member]
Total loans	$ 4,850