LOANS AND ALLOWANCE FOR LOAN LOSSES (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Reserve for unfunded commitments		$ 24,000	$ 21,000	$ 24,000	$ 21,000	$ 17,000
Activity in ALL:
Beginning balance		21,194,000	21,905,000	21,116,000	21,590,000	21,590,000
Loans charged off		(612,000)	(1,009,000)	(1,510,000)	(2,218,000)	(3,444,000)
Recoveries		269,000	155,000	554,000	538,000	746,000
Provision (credit)(1)	[1]	281,000	534,000	972,000	1,675,000	2,224,000
Ending balance		21,132,000	21,585,000	21,132,000	21,585,000	21,116,000
Ending Balance: Individually evaluated for impairment		1,865,000	2,447,000	1,865,000	2,447,000	2,239,000
Ending Balance: Collectively evaluated for impairment		19,267,000	19,138,000	19,267,000	19,138,000	18,877,000
Ending Balance: Individually evaluated for impairment		15,173,000	23,223,000	15,173,000	23,223,000	21,179,000
Ending Balance: Collectively evaluated for impairment		1,814,970,000	1,703,004,000	1,814,970,000	1,703,004,000	1,751,431,000
Total Loans Outstanding		1,830,143,000	1,726,227,000	1,830,143,000	1,726,227,000	1,772,610,000
Residential Real Estate
Activity in ALL:
Beginning balance		4,689,000	5,141,000	4,899,000	5,603,000	5,603,000
Loans charged off		(176,000)	(9,000)	(468,000)	(370,000)	(785,000)
Recoveries		15,000	2,000	35,000	136,000	165,000
Provision (credit)(1)		4,000	122,000	66,000	(113,000)	(84,000)
Ending balance		4,532,000	5,256,000	4,532,000	5,256,000	4,899,000
Ending Balance: Individually evaluated for impairment		956,000	1,420,000	956,000	1,420,000	1,220,000
Ending Balance: Collectively evaluated for impairment		3,576,000	3,836,000	3,576,000	3,836,000	3,679,000
Ending Balance: Individually evaluated for impairment		7,499,000	10,964,000	7,499,000	10,964,000	9,656,000
Ending Balance: Collectively evaluated for impairment		575,577,000	566,134,000	575,577,000	566,134,000	575,812,000
Total Loans Outstanding		583,076,000	577,098,000	583,076,000	577,098,000	585,468,000
Commercial Real Estate
Activity in ALL:
Beginning balance		4,698,000	4,361,000	4,482,000	4,374,000	4,374,000
Loans charged off		(71,000)	(100,000)	(174,000)	(276,000)	(361,000)
Recoveries		4,000	17,000	68,000	67,000	135,000
Provision (credit)(1)		661,000	82,000	916,000	195,000	334,000
Ending balance		5,292,000	4,360,000	5,292,000	4,360,000	4,482,000
Ending Balance: Individually evaluated for impairment		352,000	222,000	352,000	222,000	251,000
Ending Balance: Collectively evaluated for impairment		4,940,000	4,138,000	4,940,000	4,138,000	4,231,000
Ending Balance: Individually evaluated for impairment		4,711,000	6,710,000	4,711,000	6,710,000	7,658,000
Ending Balance: Collectively evaluated for impairment		686,224,000	606,800,000	686,224,000	606,800,000	633,003,000
Total Loans Outstanding		690,935,000	613,510,000	690,935,000	613,510,000	640,661,000
Commercial
Activity in ALL:
Beginning balance		6,777,000	6,484,000	6,823,000	6,220,000	6,220,000
Loans charged off		(144,000)	(675,000)	(387,000)	(1,201,000)	(1,544,000)
Recoveries		115,000	117,000	297,000	286,000	395,000
Provision (credit)(1)		85,000	35,000	100,000	656,000	1,752,000
Ending balance		6,833,000	5,961,000	6,833,000	5,961,000	6,823,000
Ending Balance: Individually evaluated for impairment		192,000	121,000	192,000	121,000	168,000
Ending Balance: Collectively evaluated for impairment		6,641,000	5,840,000	6,641,000	5,840,000	6,655,000
Ending Balance: Individually evaluated for impairment		1,720,000	3,380,000	1,720,000	3,380,000	1,853,000
Ending Balance: Collectively evaluated for impairment		256,385,000	242,232,000	256,385,000	242,232,000	255,662,000
Total Loans Outstanding		258,105,000	245,612,000	258,105,000	245,612,000	257,515,000
Home Equity
Activity in ALL:
Beginning balance		2,144,000	2,752,000	2,247,000	2,403,000	2,403,000
Loans charged off		(198,000)	(166,000)	(439,000)	(272,000)	(611,000)
Recoveries		132,000	8,000	137,000	19,000	19,000
Provision (credit)(1)		(6,000)	(63,000)	127,000	381,000	436,000
Ending balance		2,072,000	2,531,000	2,072,000	2,531,000	2,247,000
Ending Balance: Individually evaluated for impairment		276,000	573,000	276,000	573,000	496,000
Ending Balance: Collectively evaluated for impairment		1,796,000	1,958,000	1,796,000	1,958,000	1,751,000
Ending Balance: Individually evaluated for impairment		1,037,000	1,860,000	1,037,000	1,860,000	1,741,000
Ending Balance: Collectively evaluated for impairment		280,455,000	269,998,000	280,455,000	269,998,000	269,968,000
Total Loans Outstanding		281,492,000	271,858,000	281,492,000	271,858,000	271,709,000
Consumer
Activity in ALL:
Beginning balance		268,000	318,000	281,000	319,000	319,000
Loans charged off		(23,000)	(59,000)	(42,000)	(99,000)	(143,000)
Recoveries		3,000	11,000	17,000	30,000	32,000
Provision (credit)(1)		13,000	23,000	5,000	43,000	73,000
Ending balance		261,000	293,000	261,000	293,000	281,000
Ending Balance: Individually evaluated for impairment		89,000	111,000	89,000	111,000	104,000
Ending Balance: Collectively evaluated for impairment		172,000	182,000	172,000	182,000	177,000
Ending Balance: Individually evaluated for impairment		206,000	309,000	206,000	309,000	271,000
Ending Balance: Collectively evaluated for impairment		16,329,000	17,840,000	16,329,000	17,840,000	16,986,000
Total Loans Outstanding		16,535,000	18,149,000	16,535,000	18,149,000	17,257,000
Unallocated
Activity in ALL:
Beginning balance		2,618,000	2,849,000	2,384,000	2,671,000	2,671,000
Loans charged off		0	0	0	0	0
Recoveries		0	0	0	0	0
Provision (credit)(1)		(476,000)	335,000	(242,000)	513,000	(287,000)
Ending balance		2,142,000	3,184,000	2,142,000	3,184,000	2,384,000
Ending Balance: Individually evaluated for impairment		0	0	0	0	0
Ending Balance: Collectively evaluated for impairment		2,142,000	3,184,000	2,142,000	3,184,000	2,384,000
Ending Balance: Individually evaluated for impairment		0	0	0	0	0
Ending Balance: Collectively evaluated for impairment		0	0	0	0	0
Total Loans Outstanding		$ 0	$ 0	$ 0	$ 0	$ 0

[1] (1) The provision (credit) for loan losses excludes any impact for the change in the reserve for unfunded commitments, which represents management's estimate of the amount required to reflect the probable inherent losses on outstanding letters of credit and unused lines of credit. The reserve for unfunded commitments is presented within accrued interest and other liabilities on the consolidated statements of condition. At September 30, 2015 and 2014, and December 31, 2014, the reserve for unfunded commitments was $24,000, $21,000 and $17,000, respectively.