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Condensed Statements of Operations - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Revenue:        
License and milestone fees $ 1,710   $ 1,710 $ 302
Collaborative revenue 730 $ 1,125 2,093 1,802
Clinical compound revenue     0 159
Total revenue 2,440 1,125 3,803 2,263
Operating expenses:        
Research and development 5,584 6,208 13,653 11,609
General and administrative 1,865 1,520 5,609 4,390
Total operating expenses 7,449 7,728 19,262 15,999
Operating loss (5,009) (6,603) (15,459) (13,736)
Interest income 22 26 49 104
Loss before benefit from income taxes (4,987) (6,577) (15,410) (13,632)
Benefit from income taxes 200 32 250 59
Net loss $ (4,787) $ (6,545) $ (15,160) $ (13,573)
Net loss per share -Basic and Diluted $ (0.19) $ (0.29) $ (0.64) $ (0.67)
Weighted average shares:        
Basic and Diluted 25,545,164 22,713,040 23,737,443 20,351,005