SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Common Stock Repurchases and Common Stock Dividend) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended		3 Months Ended					1 Months Ended			12 Months Ended
	Jan. 31, 2012 quarters	Oct. 31, 2010 quarters	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Mar. 31, 2012 Common Stock [Member]	Nov. 30, 2011 Common Stock [Member]	Feb. 28, 2011 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount									$ 30,000,000	$ 50,000,000
Stock Repurchase Program, Amount Cancelled								30,000,000
Stock Repurchased and Retired During Period, Shares											1.5
Stock Repurchased and Retired During Period, Value											50,000,000
Dividends Declared, Number Of Quarters	4	4
Common Stock, Dividends, Per Share, Declared	$ 0.05	$ 0.05		$ 0.05	$ 0.05	$ 0.05	$ 0.05
Payments of Dividends			$ 1,415,000	$ 1,400,000	$ 1,400,000	$ 1,400,000	$ 1,437,000