PREFERRED STOCK AND RELATED WARRANT (Details) (USD $)	3 Months Ended				12 Months Ended					0 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 29, 2012 U.S. Treasury Capital Purchase Program [Member] Series A Preferred Stock [Member]	Nov. 21, 2008 U.S. Treasury Capital Purchase Program [Member] Series A Preferred Stock [Member]	Nov. 21, 2008 U.S. Treasury Capital Purchase Program [Member] Common Stock [Member] Warrant [Member]
Class of Stock [Line Items]
Preferred stock, shares issued									124,000
Preferred stock, liquidation value per share	$ 1,000				$ 1,000	$ 1,000			$ 1,000
Preferred stock aggregate liquidation preference									$ 124,000,000
U.S. Treasury warrants, term (in years)										10 years
Warrant, option to purchase common stock (in shares)										243,998
Common Stock, par value per share	$ 0.01				$ 0.01	$ 0.01				$ 0.01
U.S. Treasury warrants, exercise price per share										$ 76.23
U.S. Treasury warrants, aggregate exercise price										18,600,000
Preferred stock issued, value	0				0	120,702,000		124,000,000
Gain on repurchase of preferred stock	$ 401,000	$ 2,070,000	$ 0	$ 0	$ 2,471,000	$ 0	$ 0