Net Loss per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Numerator:
Net loss	$ (6,754)	$ (2,773)	$ (11,601)	$ (5,213)
Denominator:
Weighted-average shares outstanding	131,951	94,823	131,951	94,823
Effect of dilutive securities:
Stock options
Weighted-average shares outstanding for diluted loss per share	131,951	94,823	131,951	94,823
Net loss per share:
Basic	$ (0.05)	$ (0.03)	$ (0.09)	$ (0.05)
Diluted	$ (0.05)	$ (0.03)	$ (0.09)	$ (0.05)

The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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