SHARE-BASED COMPENSATION 3 (Details) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011 number	Dec. 31, 2010
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	876,025	983,150
Weighted average remaining contractual life options outstanding	6.9
Weighted average exercise price options outstanding	$ 2.84	$ 3.02
Number of options exercisable	395,734
Weighted average exercise price Options exercisable	$ 4.33
Recognized Non-Cash Compensation Expense [Line Items]
The amount of the Company's windfall tax benefit account	$ 0
Exercise prices from 1.34 to 1.34
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	802,775
Weighted average remaining contractual life options outstanding	7.0
Weighted average exercise price options outstanding	$ 1.34
Number of options exercisable	341,653
Weighted average exercise price Options exercisable	$ 1.34
Exercise prices from 2.02 to 12.08
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	51,750
Weighted average remaining contractual life options outstanding	6.9
Weighted average exercise price options outstanding	$ 9.25
Number of options exercisable	32,581
Weighted average exercise price Options exercisable	$ 9.71
Exercise prices from 33.90 to 47.77
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	8,500
Weighted average remaining contractual life options outstanding	2.7
Weighted average exercise price options outstanding	$ 36.86
Number of options exercisable	8,500
Weighted average exercise price Options exercisable	$ 36.86
Exercise prices from 48.00 to 48.21
Significant ranges of outstanding and exercisable options [Line Items]
Number of options outstanding	13,000
Weighted average remaining contractual life options outstanding	0.4
Weighted average exercise price options outstanding	$ 48.03
Number of options exercisable	13,000
Weighted average exercise price Options exercisable	$ 48.03

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from equity-based compensation costs, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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