STOCK PLANS (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	400,000		400,000
Unearned Compensation Related To Restricted Shares	$ 2,900,000	$ 4,600,000	$ 2,900,000	$ 4,600,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	133,000	178,000	272,000	371,000
Proceeds From Stock Options Exercised	18,000		70,000	38,000
Stock Issued During Period, Shares, Employee Benefit Plan			370,673
Tax Benefit			$ 62,000