Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statement of Stockholders' Equity

v3.20.1
Condensed Consolidated Statement of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Balance at beginning of period at Dec. 31, 2018 $ 170,418 $ 6 $ 693,534 $ (58) $ (523,064)
Balance at beginning of period (in shares) at Dec. 31, 2018   59,456,493      
Issuance of common stock upon exercise of stock options and incentive awards (Shares)   37,550      
Issuance of common stock upon exercise of stock options and incentive awards. value 97   97    
Issuance of common stock, net of $7,254 issuance costs 107,746 $ 1 107,745    
Issuance of common stock, net of $7,254 issuance costs (Shares)   9,200,000      
Stock-based compensation expense 2,342   2,342    
Net loss (23,075)       (23,075)
Net unrealized gain (loss) on marketable securities 103     103  
Balance at end of period at Mar. 31, 2019 257,631 $ 7 803,718 45 (546,139)
Balance at end of period (in shares) at Mar. 31, 2019   68,964,053      
Balance at beginning of period at Dec. 31, 2019 186,348 $ 7 812,133 80 (625,872)
Balance at beginning of period (in shares) at Dec. 31, 2019   68,882,459      
Stock-based compensation expense 1,998   1,998    
Net loss (13,088)       (13,088)
Net unrealized gain (loss) on marketable securities (210)     (210)  
Balance at end of period at Mar. 31, 2020 $ 175,048 $ 7 $ 814,131 $ (130) $ (638,960)
Balance at end of period (in shares) at Mar. 31, 2020   68,882,459