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Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2016
Postemployment Benefits [Abstract]
Employee Benefit Plans	16. Employee Benefit Plans The Company sponsors a 401(k) defined contribution plan covering all employees in the United States. The Board of Directors determines contributions made by the Company annually. The Company made no contributions under this plan for 2016, 2015 and 2014.