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Defined Contribution Plan	12 Months Ended
	Dec. 31, 2012
Defined Contribution Plan [Abstract]
Defined Contribution Plan	12. Defined Contribution Plan The Company has a 401(k) profit sharing plan covering all employees with three months of service. The Company may make discretionary contributions of up to 50% of employee contributions. The Company did not make any discretionary contributions and recognized no contribution expense for the years ended December 31, 2012, 2011 and 2010.

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Defined contribution plan.

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