Net (Loss) Income Per Share (Tables)	3 Months Ended
Mar. 31, 2013
Net (Loss) Income Per Share [Abstract]
Reconciliation of net (loss) income and weighted average shares used in computing basic and diluted net (loss) income per share	Reconciliation of net (loss) income and weighted average shares used in computing basic and diluted net (loss) income per share

Tabular disclosure of an entity's basic and diluted earnings per share calculations.

No definition available.

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