Annual report pursuant to Section 13 and 15(d)

Subsequent Event - Stock Offering (Details)

v3.8.0.1
Subsequent Event - Stock Offering (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Feb. 07, 2018
Feb. 02, 2018
Jan. 30, 2018
Jan. 08, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jul. 06, 2016
Subsequent Events                
Par value, common stock (in dollars per share)         $ 0.001 $ 0.001   $ 0.001
Aggregate gross proceeds         $ 32,306 $ 50,484 $ (620)  
Public Offering | Subsequent event                
Subsequent Events                
Shares issued     4,188,481          
Aggregate gross proceeds     $ 40,000          
Share price (in dollars per share)     $ 9.55          
Underwriting commissions and fees     $ 2,700          
Over-allotment                
Subsequent Events                
Shares issued   628,272            
Over-allotment | Subsequent event                
Subsequent Events                
Aggregate gross proceeds   $ 6,000            
Share price (in dollars per share)   $ 9.55            
Incyte | Private Placement | Subsequent event                
Subsequent Events                
Shares issued 18,849 125,656   793,021        
Par value, common stock (in dollars per share)       $ 0.001        
Aggregate gross proceeds $ 200 $ 1,200   $ 10,000        
Share price (in dollars per share) $ 9.55 $ 9.55   $ 12.61        
Premium to volume-weighted sale price of shares (as a percent)       30.00%        
Trading days within which the purchase price represents a thirty percent (30%) premium to the volume-weighted sale price of the shares       15 days