INCOME TAXES (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
INCOME TAXES
Unrecognized tax benefits that, if recognized, would affect the annual effective income tax rate	$ 1,600,000
Reconciliation of the beginning and ending amount of gross unrecognized tax benefits
Balance at the beginning of the period	2,009,000	2,566,000
Additions based on tax positions related to current year	45,000	43,000
Additions for tax positions of prior years	332,000	511,000
Reductions for tax positions of prior years	(344,000)	(988,000)
Settlements	(322,000)	(123,000)
Expiration of statute of limitation	(139,000)
Balance at the end of the period	1,581,000	2,009,000	2,566,000
Reductions in the liability for unrecognized tax benefits	900,000
Accrued interest and penalties	900,000	1,000,000
Interest and penalties	$ 100,000	$ 300,000	$ 900,000