FAIR VALUE - Quantitative Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Corporate Bonds and Notes | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Assets, fair value disclosure	$ 252,000	$ 248,000
Corporate Bonds and Notes | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	1.73%	1.73%
Corporate Bonds and Notes | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	1.73%	1.73%
Corporate Bonds and Notes | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	1.73%	1.73%
Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Fair value	$ 812,000	$ 2,916,000
Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Third Party Appraisals [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	100.00%	100.00%
Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Third Party Appraisals [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	0.00%	0.00%
Other real estate owned [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Other real estate owned expense associated with valuation allowance	$ 120,000
Other real estate owned [Member] | Non-recurring [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	1,642,000	$ 1,530,000
Other real estate owned [Member] | Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0	0
Other real estate owned [Member] | Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	1,491,000	1,491,000
Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Fair value	151,000	39,000
Outstanding balance of OREO	$ 151,000	39,000
Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Third Party Appraisals [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	31.00%
Fair value	$ 134,000	$ 39,000
Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Third Party Appraisals [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)		27.00%
Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Third Party Appraisals [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)		7.00%
Derivative Liabilities | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Liabilities, fair value disclosure	$ 84,000	$ 48,000
Derivative Liabilities | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	5.83%	5.83%
Derivative Liabilities | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	5.83%	5.83%
Derivative Liabilities | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	5.83%	5.83%
Commercial Mortgages other [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Fair value	$ 612,000	$ 2,629,000
Commercial Mortgages other [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	18.55%	17.19%
Commercial Mortgages other [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	11.75%	10.00%
Commercial Mortgages other [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	16.65%	16.06%
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	$ 1,491,000	$ 1,491,000
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0	0
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	1,491,000	1,491,000
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	$ 0	0
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	80.35%
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	80.35%
Commercial Mortgages other [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	80.35%
Home Equity Lines and Loans [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Fair value	$ 200,000	$ 287,000
Home Equity Lines and Loans [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	24.92%	18.04%
Home Equity Lines and Loans [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	24.92%	18.04%
Home Equity Lines and Loans [Member] | Impaired Loans [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	24.92%	18.04%
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	$ 17,000
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Fair value	17,000
Outstanding balance of OREO	$ 17,000
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	20.80%
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	20.80%
Home Equity Lines and Loans [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	20.80%
Residential Mortgage [Member] | Non-recurring [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO		$ 39,000
Residential Mortgage [Member] | Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO		0
Residential Mortgage [Member] | Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO		0
Residential Mortgage [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO		$ 39,000
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	$ 134,000
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	0
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Outstanding balance of OREO	$ 134,000
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	27.97%	22.30%
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	20.80%	22.30%
Residential Mortgage [Member] | Other real estate owned [Member] | Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Information related to Level 3 non-recurring fair value measurement [Abstract]
Discount rate (in hundredths)	23.07%	22.30%