SHARE-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS (Stock Options Activity) (Details) (USD $)	12 Months Ended
Dec. 31, 2012
Options Outstanding [Roll Forward]
Outstanding	2,091,005
Granted	727,818
Forfeited	(1,017,596)
Expired	(12,100)
Oustanding	1,789,127
Options Outstanding, Weighted Average Exercise Price [Roll Forward]
Oustanding (in usd per share)	$ 6.52
Granted (in usd per share)	$ 2.38
Forfeited (in usd per share)	$ 7.75
Expired (in usd per share)	$ 26.22
Outstanding (in usd per share)	$ 4.00
Options, Additional Disclosures
Vested and exercisable	939,276
Vested and exercisable (in usd per share)	$ 4.81
Outstanding, Weighted-Average Remaining Contractual Term	8 years 3 months 29 days
Vested and exercisable, Weighted-Average Remaining Contractual Term	7 years 9 months 26 days
Options, Vested and Expected to Vest
Vested and expected to vest	1,361,893
Vested and expected to vest (in usd per share)	$ 4.06
Vested and expected to vest, Weighted-Average Remaining Contactual Term	8 years 2 months 27 days

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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