PREFERRED STOCK (Details) (USD $)				12 Months Ended			9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Nov. 16, 2011	Dec. 31, 2011 Warrants [Member]	Dec. 31, 2011 Non-Cumulative Perpetual Preferred Stock, Series A [Member]	Sep. 15, 2011 Non-Cumulative Perpetual Preferred Stock, Series A [Member]	Sep. 30, 2011 Fixed Rate Cumulative Perpetual Preferred Stock, Series A [Member]
Class of Stock [Line Items]
Issuance of preferred stock (in shares)					22,847
Preferred stock, per share liquidation preference (in dollars per share)	$ 1,000	$ 1,000				$ 1,000
Aggregate purchase price of perpetual preferred stock						$ 22,847,000
Redemption of preferred stock (in shares)							17,390
Redemption of preferred stock							17,390,000
Class of Warrant or Right [Line Items]
Warrant issued to US Treasury (in shares)			352,977
Exercise price of stock included in warrant (in dollars per share)			$ 7.39
Aggregate repurchase price of warrants				$ 375,000