Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity

v3.19.3
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Beginning balance (shares) at Dec. 31, 2017   48,365,000      
Increase (Decrease) in Stockholders' Equity Common Shares          
Exercise of stock options (shares) 729,596 730,000      
Release of stock awards (shares)   824,000      
Taxes paid related to net share settlement of equity awards (in shares)   (297,000)      
Issuance of common stock, net of issuance costs (in shares)   4,313,000      
Ending balance (shares) at Sep. 30, 2018   53,935,000      
Beginning balance at Dec. 31, 2017 $ 24,547 $ 5 $ 340,079 $ (472) $ (315,065)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options 4,319   4,319    
Employee stock-based compensation 6,183   6,183    
Non-employee stock-based compensation 24   24    
Taxes paid related to net share settlement of equity awards (3,140)   (3,140)    
Issuance of common stock, net of issuance costs 37,317   37,317    
Issuance of common stock, issuance costs (179)        
Net income (loss) (10,417)       (10,417)
Ending balance at Sep. 30, 2018 54,773 $ 5 384,782 0 (330,014)
Beginning balance (shares) at Jun. 30, 2018   53,508,000      
Increase (Decrease) in Stockholders' Equity Common Shares          
Exercise of stock options (shares)   427,000      
Ending balance (shares) at Sep. 30, 2018   53,935,000      
Beginning balance at Jun. 30, 2018 52,530 $ 5 380,551 0 (328,026)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options 2,461   2,461    
Employee stock-based compensation 1,770   1,770    
Net income (loss) (1,988)       (1,988)
Ending balance at Sep. 30, 2018 $ 54,773 $ 5 384,782 0 (330,014)
Beginning balance (shares) at Dec. 31, 2018   54,065,000      
Increase (Decrease) in Stockholders' Equity Common Shares          
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 (in shares)   (147,000)      
Issuance of common stock, net of issuance costs (in 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 0 (330,474)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options 4,621   4,621    
Employee stock-based compensation 5,783   5,783    
Taxes paid related to net share settlement of equity awards (2,850)   (2,850)    
Issuance of common stock, net of issuance costs 49,871 1 49,870    
Issuance of common stock, issuance costs (129)        
Short swing profit settlement 77   77    
Net income (loss) (11,300)       (11,300)
Ending balance at Sep. 30, 2019 102,508 $ 6 444,276 0 (341,774)
Beginning balance (shares) at Jun. 30, 2019   57,940,000      
Increase (Decrease) in Stockholders' Equity Common Shares          
Exercise of stock options (shares)   441,000      
Release of stock awards (shares)   8,000      
Taxes paid related to net share settlement of equity awards (in shares)   (3,000)      
Ending balance (shares) at Sep. 30, 2019   58,386,000      
Beginning balance at Jun. 30, 2019 98,684 $ 6 440,795 0 (342,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options 1,778   1,778    
Employee stock-based compensation 1,732   1,732    
Taxes paid related to net share settlement of equity awards (51)   (51)    
Issuance of common stock, 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 $ 0 $ (341,774)