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Restructuring Charges	12 Months Ended
Restructuring Charges	Dec. 31, 2015
Restructuring Charges.
Restructuring Charges	12. Restructuring Charges During each of February and May 2014, the Company initiated reductions in force as part of an overall plan to reduce the Company’s cost structure. The reductions in force constituted approximately 18% of the Company’s workforce in February 2014 and 10% in May 2014. As a result of the reductions in force, the Company recorded expenses related to employee severance and termination benefits of approximately $1.4 million, which was recognized and paid during the year ended December 31, 2014.