LOANS, Analysis of Changes in the Allowances for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				$ 20,685				$ 19,200	$ 20,685	$ 19,200	$ 17,263
Charge-offs									(610)	(758)	(492)
Recoveries									542	1,643	1,429
(Credit) provision for loan losses	$ (400)	$ (350)	$ 0	250	$ 0	$ 350	$ 0	250	(500)	600	1,000
Balance, End of Period	20,117				20,685				20,117	20,685	19,200
Commercial and Industrial [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				1,875				1,560	1,875	1,560	2,615
Charge-offs									(416)	(744)	(420)
Recoveries									264	1,524	797
(Credit) provision for loan losses									409	(465)	(1,432)
Balance, End of Period	2,132				1,875				2,132	1,875	1,560
Commercial Real Estate [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				7,019				6,777	7,019	6,777	6,572
Charge-offs									(103)	0	0
Recoveries									210	39	519
(Credit) provision for loan losses									904	203	(314)
Balance, End of Period	8,030				7,019				8,030	7,019	6,777
Multifamily [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				4,688				4,018	4,688	4,018	2,159
Charge-offs									0	0	0
Recoveries									0	0	0
(Credit) provision for loan losses									(1,065)	670	1,859
Balance, End of Period	3,623				4,688				3,623	4,688	4,018
Mixed Use Commercial [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				766				261	766	261	54
Charge-offs									0	0	0
Recoveries									0	0	0
(Credit) provision for loan losses									(36)	505	207
Balance, End of Period	730				766				730	766	261
Real Estate Construction [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				386				383	386	383	88
Charge-offs									0	0	0
Recoveries									0	0	0
(Credit) provision for loan losses									174	3	295
Balance, End of Period	560				386				560	386	383
Residential Mortgages [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				2,476				3,027	2,476	3,027	2,463
Charge-offs									0	0	(32)
Recoveries									42	32	16
(Credit) provision for loan losses									(517)	(583)	580
Balance, End of Period	2,001				2,476				2,001	2,476	3,027
Home Equity [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				639				709	639	709	745
Charge-offs									(19)	0	0
Recoveries									13	22	50
(Credit) provision for loan losses									(118)	(92)	(86)
Balance, End of Period	515				639				515	639	709
Consumer [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				106				166	106	166	241
Charge-offs									(72)	(14)	(40)
Recoveries									13	26	47
(Credit) provision for loan losses									15	(72)	(82)
Balance, End of Period	62				106				62	106	166
Unallocated [Member]
Allowance for loan losses [Roll Forward]
Balance, Beginning of Period				$ 2,730				$ 2,299	2,730	2,299	2,326
Charge-offs									0	0	0
Recoveries									0	0	0
(Credit) provision for loan losses									(266)	431	(27)
Balance, End of Period	$ 2,464				$ 2,730				$ 2,464	$ 2,730	$ 2,299