LOANS (Schedule of Schedule of Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Total Loans	$ 3,147,304	$ 2,911,552
Impaired loans	30,200	26,615
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans	10,476	11,503
Consumer and Other [Member]
Total Loans	72,844	47,635
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans	510,062	483,085
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans	63,188	52,804
Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans	1,501,915	1,416,775
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	642,530	568,849
Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans	99	151
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	166,124	176,276
Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Total Loans	179,892	154,295
Agricultural Sector [Member]
Total Loans	174	179
Pass [Member]
Total Loans	3,083,035	2,847,245
Pass [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans	10,310	11,327
Pass [Member] | Consumer and Other [Member]
Total Loans	72,844	47,635
Pass [Member] | Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans	495,876	471,859
Pass [Member] | Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans	63,038	52,550
Pass [Member] | Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans	1,499,558	1,407,856
Pass [Member] | Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	606,571	536,479
Pass [Member] | Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans
Pass [Member] | Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	160,427	170,420
Pass [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Total Loans	174,237	148,940
Pass [Member] | Agricultural Sector [Member]
Total Loans	174	179
Special Mention [Member]
Total Loans	13,185	21,530
Special Mention [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans
Special Mention [Member] | Consumer and Other [Member]
Total Loans
Special Mention [Member] | Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans	673	1,332
Special Mention [Member] | Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans
Special Mention [Member] | Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans	1,950	7,718
Special Mention [Member] | Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	4,127	6,217
Special Mention [Member] | Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans	99	151
Special Mention [Member] | Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	906	928
Special Mention [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Total Loans	5,430	5,184
Special Mention [Member] | Agricultural Sector [Member]
Total Loans
Substandard [Member]
Total Loans	51,084	42,777
Impaired loans	25,400	21,800
Substandard [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans	166	176
Substandard [Member] | Consumer and Other [Member]
Total Loans
Substandard [Member] | Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans	13,513	9,894
Substandard [Member] | Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans	150	254
Substandard [Member] | Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans	407	1,201
Substandard [Member] | Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	31,832	26,153
Substandard [Member] | Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans
Substandard [Member] | Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	4,791	4,928
Substandard [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Total Loans	225	171
Substandard [Member] | Agricultural Sector [Member]
Total Loans
Doubtful [Member]
Total Loans
Doubtful [Member] | Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans
Doubtful [Member] | Consumer and Other [Member]
Total Loans
Doubtful [Member] | Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Total Loans
Doubtful [Member] | Agricultural Sector [Member]
Total Loans