LOANS (Schedule of Schedule of Risk Category of Loans by Class of Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Total Loans	$ 3,025,837	$ 2,911,552
Pass [Member]
Total Loans	2,956,415	2,847,245
Special Mention [Member]
Total Loans	20,605	21,530
Substandard [Member]
Total Loans	$ 48,817	$ 42,777
Doubtful [Member]
Total Loans
Agricultural Sector [Member]
Total Loans	$ 177	$ 179
Agricultural Sector [Member] | Pass [Member]
Total Loans	$ 177	$ 179
Agricultural Sector [Member] | Special Mention [Member]
Total Loans
Agricultural Sector [Member] | Substandard [Member]
Total Loans
Agricultural Sector [Member] | Doubtful [Member]
Total Loans
Residential Portfolio Segment [Member] | Junior Lien [Member]
Total Loans	$ 10,686	$ 11,503
Residential Portfolio Segment [Member] | Junior Lien [Member] | Pass [Member]
Total Loans	$ 10,515	$ 11,327
Residential Portfolio Segment [Member] | Junior Lien [Member] | Special Mention [Member]
Total Loans
Residential Portfolio Segment [Member] | Junior Lien [Member] | Substandard [Member]
Total Loans	$ 171	$ 176
Residential Portfolio Segment [Member] | Junior Lien [Member] | Doubtful [Member]
Total Loans
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Total Loans	$ 173,299	$ 154,295
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Pass [Member]
Total Loans	168,128	148,940
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Special Mention [Member]
Total Loans	5,035	5,184
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Substandard [Member]
Total Loans	$ 136	$ 171
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Doubtful [Member]
Total Loans
Consumer and Other [Member]
Total Loans	$ 47,894	$ 47,635
Consumer and Other [Member] | Pass [Member]
Total Loans	$ 47,894	$ 47,635
Consumer and Other [Member] | Special Mention [Member]
Total Loans
Consumer and Other [Member] | Substandard [Member]
Total Loans
Consumer and Other [Member] | Doubtful [Member]
Total Loans
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member]
Total Loans	$ 499,734	$ 483,085
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member] | Pass [Member]
Total Loans	488,749	471,859
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member] | Special Mention [Member]
Total Loans	679	1,332
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member] | Substandard [Member]
Total Loans	$ 10,306	$ 9,894
Primary Residential Mortgages [Member] | Residential Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member]
Total Loans	$ 53,481	$ 52,804
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] | Pass [Member]
Total Loans	$ 53,328	$ 52,550
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] | Special Mention [Member]
Total Loans
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] | Substandard [Member]
Total Loans	$ 153	$ 254
Home Equity Lines of Credit [Member] | Residential Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Multifamily Property [Member] | Residential Portfolio Segment [Member]
Total Loans	$ 1,489,708	$ 1,416,775
Multifamily Property [Member] | Residential Portfolio Segment [Member] | Pass [Member]
Total Loans	1,480,843	1,407,856
Multifamily Property [Member] | Residential Portfolio Segment [Member] | Special Mention [Member]
Total Loans	7,677	7,718
Multifamily Property [Member] | Residential Portfolio Segment [Member] | Substandard [Member]
Total Loans	$ 1,188	$ 1,201
Multifamily Property [Member] | Residential Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Owner Occupied Property [Member] | Residential Portfolio Segment [Member] | Pass [Member]
Total Loans	$ 157,713
Owner Occupied Property [Member] | Residential Portfolio Segment [Member] | Special Mention [Member]
Total Loans	917
Owner Occupied Property [Member] | Residential Portfolio Segment [Member] | Substandard [Member]
Total Loans	$ 4,865
Owner Occupied Property [Member] | Residential Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	$ 163,495	$ 176,276
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Total Loans		170,420
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Total Loans		928
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Total Loans		$ 4,928
Owner Occupied Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Loans	587,213	$ 568,849
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Total Loans	549,068	536,479
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Total Loans	6,147	6,217
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Total Loans	$ 31,998	$ 26,153
Investment Property [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Total Loans
Construction Loans [Member] | Commercial Portfolio Segment [Member]
Total Loans	$ 150	$ 151
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Pass [Member]
Total Loans
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Special Mention [Member]
Total Loans	$ 150	$ 151
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Substandard [Member]
Total Loans
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Doubtful [Member]
Total Loans