INVESTMENT SECURITIES (Details) (USD $)	9 Months Ended															12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 U.S. Treasury securities and U.S. Government agencies	Dec. 31, 2013 U.S. Treasury securities and U.S. Government agencies	Sep. 30, 2014 Private label mortgage backed security	Dec. 31, 2013 Private label mortgage backed security	Sep. 30, 2014 Mortgage backed securities - residential	Dec. 31, 2013 Mortgage backed securities - residential	Sep. 30, 2014 Collateralized mortgage obligations	Dec. 31, 2013 Collateralized mortgage obligations	Sep. 30, 2014 Federal Home Loan Mortgage Corporation Certificates and Obligations FHLMC Preferred Stock [Member]	Dec. 31, 2008 Federal Home Loan Mortgage Corporation Certificates and Obligations FHLMC Preferred Stock [Member]	Sep. 30, 2014 Mutual fund	Dec. 31, 2013 Mutual fund	Dec. 31, 2013 Corporate bonds	Sep. 30, 2014 Corporate bonds	Mar. 31, 2014 Corporate bonds
Securities available for sale:
Gross Amortized Cost	$ 445,292,000		$ 428,263,000	$ 149,709,000	$ 97,157,000	$ 4,158,000	$ 4,740,000	$ 125,058,000	$ 146,087,000	$ 150,355,000	$ 164,264,000			$ 1,000,000	$ 1,000,000	$ 15,015,000	$ 15,012,000
Gross Unrealized Gains	8,757,000		6,720,000	257,000	409,000	1,179,000	745,000	5,363,000	4,288,000	1,167,000	1,228,000	669,000		10,000		50,000	112,000
Gross Unrealized Losses	(1,075,000)		(2,090,000)	(75,000)	(101,000)			(156,000)	(288,000)	(844,000)	(1,546,000)				(5,000)	(150,000)
Fair Value	452,974,000		432,893,000	149,891,000	97,465,000	5,337,000	5,485,000	130,265,000	150,087,000	150,678,000	163,946,000	669,000	0	1,010,000	995,000	14,915,000	15,124,000
Amount of floating rate corporate bonds purchased	$ 119,427,000	$ 175,275,000														$ 20,000,000
Weighted average yield (as a percent)																1.36%
Weighted average life																7 years
Corporate bonds as a percentage of bank's investment portfolio																4.00%		4.00%