SHARE-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

A summary of stock option activity under the Plan as of December 31, 2012, and changes during the year ended December 31, 2012 are presented below:



	Shares		Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term (in yrs)
Outstanding as of January 1, 2012	2,091,005		$	6.52
Granted	727,818		2.38
Forfeited	(1,017,596	)	7.75
Expired	(12,100	)	26.22
Outstanding as of December 31, 2012	1,789,127		$	4.00	8.33
Vested and exercisable as of December 31, 2012	939,276		$	4.81	7.82
Vested and expected to vest as of December 31, 2012	1,361,893		$	4.06	8.24

Schedule of Stock Options, Valuation Assumptions

The assumptions used to determine the value of our stock-based awards under the Black-Scholes method are summarized below:



	2012	2011
Risk-free interest rate	0.37% - 1.6%	1.0% - 3.0%
Dividend yield	—%	—%
Expected volatility	56.8% - 77.9%	58.6% - 75.4%
Average expected life in years	5.0	5.0

Schedule of Restricted Stock and Restricted Stock Units Award Activity

A summary of restricted stock awards and deferred stock units activity under the Plans as of December 31, 2012, and changes during the year then ended are presented below:



	Number of Restricted Shares and Units		Weighted-Average Grant Date Fair Value
Nonvested balance as of January 1, 2012	85,618		$	5.12
Granted	38,126		2.07
Vested	(71,370	)	3.52
Forfeited	(38,302	)	5.47
Nonvested balance as of December 31, 2012	14,072		$	4.03

Schedule of Employee Stock Purchase Plan, Valuation Assumptions

The assumptions used to value the shares under the ESPP using the Black-Scholes method were as follows:



	2012	2011
Risk-free interest rate	0.02% - 0.10%	0.02% - 0.07%
Dividend yield	—%	—%
Expected volatility	48.9% - 93.1%	33.3% - 56.9%
Expected life in years	3 months	3 months