Restructuring Charge	12 Months Ended
Restructuring Charge	Dec. 31, 2014
Restructuring And Related Activities [Abstract]
Restructuring Charge	10. Restructuring Charge In November 2012, as part of our strategy to better align our capital resources with our clinical development plan, we reduced our workforce by 23 employees, 16 of whom were immediately terminated, five of whom were terminated on January 31, 2013, and two of whom were terminated on April 30, 2013. The final restructuring charge of $698,000 includes severance and related costs associated with the termination of the employees. For the year ended December 31, 2013, we recorded a net restructuring charge of $79,000, of which $66,000 is included within research and development expense and $13,000 is included within general and administrative expense on our consolidated statements of operations. During the year ended December 31, 2013, we paid $223,000 of severance costs. There were no remaining amounts accrued for the restructuring liability at December 31, 2013.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

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