SECURITIES (Addiotional information) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Information related to available for sale securities [Abstract]
Number of securities sold			11	36
Cost basis of securities sold	$ 29,300,000	$ 73,500,000	$ 29,300,000	$ 73,500,000
Securities available for sale	481,256,000	73,300,000	481,256,000	73,300,000
Available-for-sale Securities pledged as collateral	199,300,000	249,800,000	199,300,000	249,800,000
Other-than-temporary impairment recognized in accumulated other comprehensive income	0		0		213,000
Number of securities with unrealized losses [Abstract]
Number of available-for-sale securities in unrealized loss positions, less than 12 months	43		43		26
Number of available-for-sale securities in unrealized loss positions, 12 months or more	12		12		12
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	55		55		38
Non-agency residential mortgage backed securities not issued by the federal government or government sponsored agencies	7,000,000	32,200,000	7,000,000	32,200,000
Total impairment losses recognized on securities	$ 67,000	$ 33,000	$ 1,052,000	$ 154,000
Agency Residential Mortgage-Backed Securities [Member]
Number of securities with unrealized losses [Abstract]
Number of available-for-sale securities in unrealized loss positions, less than 12 months	21		21		21
Number of available-for-sale securities in unrealized loss positions, 12 months or more	11		11		1
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	32		32		22
Non-Agency Residential Mortgage Backed Securities [Member]
Number of securities with unrealized losses [Abstract]
Number of available-for-sale securities in unrealized loss positions, less than 12 months					2
Number of available-for-sale securities in unrealized loss positions, 12 months or more					9
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions					11
State and Municipal Securities [Member]
Number of securities with unrealized losses [Abstract]
Number of available-for-sale securities in unrealized loss positions, less than 12 months	22		22		3
Number of available-for-sale securities in unrealized loss positions, 12 months or more	1		1		2
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	23		23		5