LOANS, Loans Current and Past Due by Aging Categories (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Summary of current and past due loans [Abstract]
Total past due	$ 8,231	$ 6,574
Current	1,739,841	1,659,873
Total loans	$ 1,748,072	$ 1,666,447
Percentage of Total Loans, Past Due	0.50%	0.40%
Percentage of Total Loans, Current	99.50%	99.60%
Percentage of Total Loans	100.00%	100.00%
30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	$ 797	$ 871
Percentage of Total Loans, Past Due	0.10%	0.10%
60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	$ 436	$ 175
Percentage of Total Loans, Past Due	0.00%	0.00%
90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	$ 6,998	$ 5,528
Percentage of Total Loans, Past Due	0.40%	0.30%
Commercial and Industrial [Member]
Summary of current and past due loans [Abstract]
Total past due	$ 4,174	$ 1,975
Current	191,147	187,794
Total loans	195,321	189,769
Commercial and Industrial [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	6	21
Commercial and Industrial [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	40	0
Commercial and Industrial [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	4,128	1,954
Commercial Real Estate [Member]
Summary of current and past due loans [Abstract]
Total past due	2,181	1,733
Current	716,753	695,054
Total loans	718,934	696,787
Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	222	0
Commercial Real Estate [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	1,959	1,733
Multifamily [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Current	480,678	426,549
Total loans	480,678	426,549
Multifamily [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Multifamily [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Multifamily [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Mixed Use Commercial [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Current	83,421	78,787
Total loans	83,421	78,787
Mixed Use Commercial [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Mixed Use Commercial [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Mixed Use Commercial [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Real Estate Construction [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Current	37,373	37,233
Total loans	37,373	37,233
Real Estate Construction [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Real Estate Construction [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Real Estate Construction [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Residential Mortgages [Member]
Summary of current and past due loans [Abstract]
Total past due	1,486	2,045
Current	180,163	184,268
Total loans	181,649	186,313
Residential Mortgages [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	588	512
Residential Mortgages [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	174	175
Residential Mortgages [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	724	1,358
Home Equity [Member]
Summary of current and past due loans [Abstract]
Total past due	386	742
Current	45,061	44,209
Total loans	45,447	44,951
Home Equity [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	200	336
Home Equity [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Home Equity [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	186	406
Consumer [Member]
Summary of current and past due loans [Abstract]
Total past due	4	79
Current	5,245	5,979
Total loans	5,249	6,058
Consumer [Member] | 30-59 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	3	2
Consumer [Member] | 60-89 Days Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	0	0
Consumer [Member] | 90 Days and Over Past Due [Member]
Summary of current and past due loans [Abstract]
Total past due	$ 1	$ 77