Employee Benefit Plan (Details) (USD $)	12 Months Ended			33 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013
Employee Benefit Plan
Contributions made by the company to the 401 (k) plan	$ 100,000	$ 100,000	$ 0	$ 200,000