Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity

v3.20.2
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Beginning balance (shares) at Dec. 31, 2018   54,065,000    
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Exercise of stock options (shares) 970,256 970,000    
Release of stock awards (shares)   449,000    
Taxes paid related to net share settlement of equity awards (shares)   (147,000)    
Issuance of common stock, net of issuance costs (shares)   3,049,000    
Ending balance (shares) at Sep. 30, 2019   58,386,000    
Beginning balance at Dec. 31, 2018 $ 56,306 $ 5 $ 386,775 $ (330,474)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Employee stock-based compensation 5,783   5,783  
Exercise of stock options 4,621   4,621  
Taxes paid related to net share settlement of equity awards (2,850)   (2,850)  
Issuance of common stock, net of issuance costs of $129 49,871 1 49,870  
Short swing profit settlement 77   77  
Net income (loss) (11,300)     (11,300)
Ending balance at Sep. 30, 2019 102,508 $ 6 444,276 (341,774)
Beginning balance (shares) at Jun. 30, 2019   57,940,000    
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Exercise of stock options (shares)   441,000    
Release of stock awards (shares)   8,000    
Taxes paid related to net share settlement of equity awards (shares)   (3,000)    
Ending balance (shares) at Sep. 30, 2019   58,386,000    
Beginning balance at Jun. 30, 2019 98,684 $ 6 440,795 (342,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Employee stock-based compensation 1,732   1,732  
Exercise of stock options 1,778   1,778  
Taxes paid related to net share settlement of equity awards (51)   (51)  
Issuance costs (55)   (55)  
Short swing profit settlement 77   77  
Net income (loss) 343     343
Ending balance at Sep. 30, 2019 $ 102,508 $ 6 444,276 (341,774)
Beginning balance (shares) at Dec. 31, 2019   58,877,000    
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Exercise of stock options (shares) 87,240 87,000    
Release of stock awards (shares)   370,000    
Taxes paid related to net share settlement of equity awards (shares)   (102,000)    
Ending balance (shares) at Sep. 30, 2020   59,232,000    
Beginning balance at Dec. 31, 2019 $ 105,517 $ 6 447,920 (342,409)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Employee stock-based compensation 6,045   6,045  
Non-employee stock-based compensation 47   47  
Exercise of stock options 539   539  
Taxes paid related to net share settlement of equity awards (1,257)   (1,257)  
Net income (loss) (20,090)     (20,090)
Ending balance at Sep. 30, 2020 90,801 $ 6 453,294 (362,499)
Beginning balance (shares) at Jun. 30, 2020   59,125,000    
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Exercise of stock options (shares)   55,000    
Release of stock awards (shares)   70,000    
Taxes paid related to net share settlement of equity awards (shares)   (18,000)    
Ending balance (shares) at Sep. 30, 2020   59,232,000    
Beginning balance at Jun. 30, 2020 94,786 $ 6 451,185 (356,405)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Employee stock-based compensation 1,941   1,941  
Non-employee stock-based compensation 43   43  
Exercise of stock options 342   342  
Taxes paid related to net share settlement of equity awards (217)   (217)  
Net income (loss) (6,094)     (6,094)
Ending balance at Sep. 30, 2020 $ 90,801 $ 6 $ 453,294 $ (362,499)