STOCK BASED COMPENSATION (Details 3) (USD $)	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Options Outstanding
Number of options outstanding (in shares)	377,270	317,270
Weighted Average Remaining Contractual Life	4 years 2 months 12 days
Weighted Average Exercise price (in dollars per share)	$ 21.16	$ 24.62
Options Exercisable
Number of Options Exercisable (in shares)	293,186
Weighted Average Exercise Price (in dollars per share)	$ 25.96
1995 Stock Incentive Plan
Options Outstanding
Number of options outstanding (in shares)	183,406
Weighted Average Remaining Contractual Life	1 year 4 months 24 days
Weighted Average Exercise price (in dollars per share)	$ 13.08
Options Exercisable
Number of Options Exercisable (in shares)	183,406
Weighted Average Exercise Price (in dollars per share)	$ 13.08
2004 Employee Incentive Plan
Options Outstanding
Number of options outstanding (in shares)	95,741
Weighted Average Remaining Contractual Life	8 years
Weighted Average Exercise price (in dollars per share)	$ 16.26
Options Exercisable
Number of Options Exercisable (in shares)	36,657
Weighted Average Exercise Price (in dollars per share)	$ 37.21
2004 Directors' Plan
Options Outstanding
Number of options outstanding (in shares)	98,123
Weighted Average Remaining Contractual Life	5 years 10 months 24 days
Weighted Average Exercise price (in dollars per share)	$ 41.05
Options Exercisable
Number of Options Exercisable (in shares)	73,123
Weighted Average Exercise Price (in dollars per share)	$ 52.62