Retirement Savings Plans	12 Months Ended
Retirement Savings Plans	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Retirement Savings Plans	Retirement Savings Plans (a) U.S.-Based Employees The Company maintains an employee savings and retirement plan (the 401(k) Plan) covering all of its U.S. employees. The 401(k) Plan permits but does not require matching contributions by the Company on behalf of participants. Starting in January 2014, the Company began matching 50% of employee contributions for the first 6% contributed by each employee. For the year ended December 31, 2014, the 401(k) match made by the Company was approximately $377,000. The Company did not match contributions for the years ended December 31, 2013 or 2012. (b) France-Based Employees The Company provides retirement indemnities for employees located in France commensurate with other similar companies in that region. Accruals for these employee retirement obligations amounted to $255,000 and $230,000 at December 31, 2014 and 2013, respectively. Expenses related to these programs were not material in the periods presented.

The entire disclosure for pension and other postretirement benefits.