License Agreement (Details) (License agreement., USD $)	1 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
License agreement
Number of shares of common stock issued under agreement	2,862
License issue fee	$ 50,000
Fair value of common stock	4,400
Milestone minimum annual payment		50,000
Payment due period following achievement of milestone		30 days
Expenses recognized that are associated with the license agreement		$ 50,000	$ 50,000	$ 50,000
Maximum
License agreement
Number of shares of common stock to be issued upon meeting various future milestones		11,451