INVESTMENT SECURITIES (Details 4)	1 Months Ended	9 Months Ended	12 Months Ended
	Oct. 31, 2014 USD ($)	Sep. 30, 2015 USD ($) item	Dec. 31, 2014 USD ($) item	Dec. 31, 2008 USD ($) item
Securities available for Sale - Amortized Cost
Due from one year to five years		$ 221,947,000
Due from five years to ten years		10,000,000
Total securities		453,934,000
Securities available for Sale - Fair Value
Due from one year to five years		223,120,000
Due from five years to ten years		10,013,000
Total securities		461,558,000
Securities held to maturity - Carrying Value
Due in one year or less		1,005,000
Due from one year to five years		5,518,000
Total securities		41,041,000	$ 45,437,000
Securities held to maturity - Fair Value
Due in one year or less		1,013,000
Due from one year to five years		5,505,000
Total securities		$ 41,601,000	$ 45,807,000
Number of Securities Held | item		161	157
Private label mortgage backed security
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date		$ 4,037,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date		$ 5,173,000
Securities held to maturity - Fair Value
Number of Securities Held | item		1
Mortgage backed securities - residential
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date		$ 96,609,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date		100,936,000
Securities held to maturity - Carrying Value
Securities not due at a single maturity date		53,000
Total securities		53,000	$ 147,000
Securities held to maturity - Fair Value
Securities not due at a single maturity date		60,000
Total securities		60,000	167,000
Collateralized mortgage obligations
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date		120,341,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date		121,022,000
Securities held to maturity - Carrying Value
Securities not due at a single maturity date		34,465,000
Total securities		34,465,000	38,543,000
Securities held to maturity - Fair Value
Securities not due at a single maturity date		35,023,000
Total securities		35,023,000	38,962,000
Mortgage backed securities and CMOs
Securities available for Sale - Amortized Cost
Available-for-sale Debt Securities, Gross Unrealized Loss		430,000	$ 1,200,000
Freddie Mac
Securities available for Sale - Fair Value
Securities not due at a single maturity date		269,000
Securities held to maturity - Fair Value
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net				$ 2,100,000
Number of Securities Held | item				40,000
Total unrealized gain	$ 269,000
Mutual fund
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date		1,000,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date		$ 1,025,000