Stock-based Compensation - Warrants Granted to Non-Employees - General Information (Details) - First Warrant - Pavilion	Aug. 05, 2014 $ / shares shares
Warrant information
Warrants, aggregate shares (in shares)	138,000
Warrants, exercise price (in dollars per share) | $ / shares	$ 2.47
Shares exercisable immediately upon issuance (in shares)	69,000
Shares exercisable upon share purchase (in shares)	34,500
Shares exercisable on January 26, 2015 (in shares)	34,500