Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

v3.21.2
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Series D Preferred Stock
Series E Preferred Stock
At the market offering
Private placement
Preferred shares
Preferred shares
Series D Preferred Stock
Preferred shares
Series E Preferred Stock
Common shares
Common shares
Series D Preferred Stock
Common shares
Series E Preferred Stock
Common shares
At the market offering
Common shares
Private placement
ATM proceeds receivable
ATM proceeds receivable
At the market offering
Additional paid-in capital
Additional paid-in capital
Series D Preferred Stock
Additional paid-in capital
Series E Preferred Stock
Additional paid-in capital
At the market offering
Additional paid-in capital
Private placement
Accumulated other comprehensive income (loss)
Accumulated deficit
Balance at beginning of period (in shares) at Dec. 31, 2019           11     55,212                          
Balance at beginning of period at Dec. 31, 2019 $ 51,352         $ 0     $ 55         $ 0   $ 227,468         $ (1,995) $ (174,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                            
Net loss (22,830)                                         (22,830)
Foreign currency translation adjustment 1,462                                       1,462 0
Unrealized gain (loss) on investments (249)                                       (249)  
Stock based compensation expense 3,916                             3,916            
Issuance of common stock resulting from exercise of stock options (in shares)                 139                          
Issuance of common stock resulting from exercise of stock options 271                             271            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 47                          
Issuance of common stock resulting from purchase of employee stock purchase plan shares 145                             145            
Preferred stock conversion (in shares)             3     3,000                        
Preferred stock conversion value   $ 0               $ (3)             $ 3          
Issuance of common stock pursuant to offering (in shares)                       3,571                    
Issuance of common stock pursuant to offering value       $ 9,624               $ 4             $ 9,620      
Balance at end of period (in shares) at Sep. 30, 2020           14     55,971                          
Balance at end of period at Sep. 30, 2020 43,691         $ 0     $ 56         0   241,423         (782) (197,006)
Balance at beginning of period (in shares) at Jun. 30, 2020           14     52,399                          
Balance at beginning of period at Jun. 30, 2020 46,672         $ 0     $ 52         0   230,407         (1,064) (182,723)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                            
Net loss (14,283)                                         (14,283)
Foreign currency translation adjustment 632                                       632  
Unrealized gain (loss) on investments (350)                                       (350)  
Stock based compensation expense 1,396                             1,396            
Issuance of common stock pursuant to offering (in shares)                       3,571                    
Issuance of common stock pursuant to offering value       9,624               $ 4             9,620      
Balance at end of period (in shares) at Sep. 30, 2020           14     55,971                          
Balance at end of period at Sep. 30, 2020 43,691         $ 0     $ 56         0   241,423         (782) (197,006)
Balance at beginning of period (in shares) at Dec. 31, 2020           14     56,003                          
Balance at beginning of period at Dec. 31, 2020 31,027         $ 0     $ 56         0   242,672         (295) (211,406)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                            
Net loss (36,206)                                         (36,206)
Foreign currency translation adjustment 911                                       911  
Stock based compensation expense 3,895                             3,895            
Issuance of common stock resulting from exercise of stock options (in shares)                 412                          
Issuance of common stock resulting from exercise of stock options 858                             858            
Issuance of common stock resulting from purchase of employee stock purchase plan shares (in shares)                 40                          
Issuance of common stock resulting from purchase of employee stock purchase plan shares 96                             96            
Issuance of common stock resulting from exercise of warrants (in shares)                 1,391                          
Issuance of common stock resulting from exercise of warrants 837               $ 1             836            
Preferred stock conversion (in shares)           4   5 3,812   5,000                      
Preferred stock conversion value 0   $ 0           $ 4   $ (5)         (4)   $ 5        
Issuance of common stock pursuant to offering (in shares)                       7,558 7,290                  
Issuance of common stock pursuant to offering value       33,522 $ 18,913             $ 8 $ 8   $ (1,814)       35,328 $ 18,905    
Balance at end of period (in shares) at Sep. 30, 2021           16     71,505                          
Balance at end of period at Sep. 30, 2021 53,853         $ 0     $ 72         (1,814)   302,591         616 (247,612)
Balance at beginning of period (in shares) at Jun. 30, 2021           16     66,679                          
Balance at beginning of period at Jun. 30, 2021 46,721         $ 0     $ 67         0   277,496         234 (231,076)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                            
Net loss (16,536)                                         (16,536)
Foreign currency translation adjustment 382                                       382  
Stock based compensation expense 1,370                             1,370            
Issuance of common stock resulting from exercise of stock options (in shares)                 272                          
Issuance of common stock resulting from exercise of stock options 566                             566            
Issuance of common stock pursuant to offering (in shares)                       4,554                    
Issuance of common stock pursuant to offering value       $ 21,350               $ 5     $ (1,814)       $ 23,159      
Balance at end of period (in shares) at Sep. 30, 2021           16     71,505                          
Balance at end of period at Sep. 30, 2021 $ 53,853         $ 0     $ 72         $ (1,814)   $ 302,591         $ 616 $ (247,612)