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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2011
Subsequent Events
Subsequent Events	14. Subsequent Events On August 8, 2011, the Company announced a plan to rebalance and reduce operating expenses. The purpose of this plan is to reduce cash burn while continuing to fund R&D investment in key growth areas. The Company is in the process of evaluating the financial statement impact of this plan and will accrue any related expenses, such as severance costs, as incurred.