Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Changes in Redeemable Convertible Preferred Stock and Stockholders' Equity

v3.20.2
Condensed Consolidated Statements of Changes in Redeemable Convertible Preferred Stock and Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Other Comprehensive Loss
Beginning balance at Dec. 31, 2018 $ 5,377        
Beginning balance (in shares) at Dec. 31, 2018 6,000        
Increase (Decrease) in Temporary Equity [Roll Forward]          
Series A convertible preferred stock redeemed for cash $ (5,377)        
Series A convertible preferred stock redeemed for cash (in shares) (6,000)        
Ending balance at Sep. 30, 2019 $ 0        
Ending balance (in shares) at Sep. 30, 2019 0        
Beginning balance at Dec. 31, 2018 $ 5,827 $ 3 $ 118,062 $ (111,820) $ (418)
Beginning balance (in shares) at Dec. 31, 2018   27,253,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 165   165    
Exercise of stock options, net of vesting of restricted shares (in shares)   298,000      
Vesting of restricted stock units (in shares)   23,000      
Exercise of common stock warrants for cash 6,184   6,184    
Exercise of common stock warrants for cash (in shares)   617,000      
Exercise of common stock warrants pursuant to cashless provisions (in shares)   10,913,000      
Exercise of common stock warrants pursuant to cashless provisions 0 $ 1 (1)    
Series A convertible preferred stock redeemed for cash (863)   (863)    
Waiver of sponsor promissory note originally issued in conjunction with Reverse Merger and Recapitalization 1,993   1,993    
Stock-based compensation expense 1,111   1,111    
Issuance of common stock upon partial conversions of Senior Convertible Note 0        
Reacquisition of equity component of Senior Convertible Note 0        
Equity classified cash conversion feature of Senior Convertible Notes 0        
Cumulative translation adjustment (36)       (36)
Net loss (8,987)     (8,987)  
Ending balance at Sep. 30, 2019 6,481 $ 4 126,651 (119,720) (454)
Ending balance (in shares) at Sep. 30, 2019   39,104,000      
Beginning balance at Jun. 30, 2019 $ 0        
Beginning balance (in shares) at Jun. 30, 2019 0        
Ending balance at Sep. 30, 2019 $ 0        
Ending balance (in shares) at Sep. 30, 2019 0        
Beginning balance at Jun. 30, 2019 $ 8,143 $ 4 125,854 (117,294) (421)
Beginning balance (in shares) at Jun. 30, 2019   38,902,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 113   113    
Exercise of stock options, net of vesting of restricted shares (in shares)   179,000      
Vesting of restricted stock units (in shares)   23,000      
Stock-based compensation expense 684   684    
Cumulative translation adjustment (33)       (33)
Net loss (2,426)     (2,426)  
Ending balance at Sep. 30, 2019 6,481 $ 4 126,651 (119,720) (454)
Ending balance (in shares) at Sep. 30, 2019   39,104,000      
Beginning balance at Dec. 31, 2019 $ 0        
Beginning balance (in shares) at Dec. 31, 2019 0        
Ending balance at Sep. 30, 2020 $ 0        
Ending balance (in shares) at Sep. 30, 2020 0        
Beginning balance at Dec. 31, 2019 $ 4,026 $ 4 128,008 (123,604) (382)
Beginning balance (in shares) at Dec. 31, 2019   39,811,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 96   96    
Exercise of stock options, net of vesting of restricted shares (in shares)   186,000      
Vesting of restricted stock units (in shares)   1,082,000      
Issuance of common stock for payment of legal, earned bonus, and board of director fees 1,239   1,239    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   1,297,000      
Sale of common stock 1,342 $ 1 1,341    
Sale of common stock (in shares)   1,302,000      
Stock-based compensation expense 3,458   3,458    
Issuance of common stock related to conversion of Senior Convertible Note (in shares)   1,763,675      
Issuance of common stock upon partial conversions of Senior Convertible Note 2,266   2,266    
Reacquisition of equity component of Senior Convertible Note (1,388)   (1,388)    
Equity classified cash conversion feature of Senior Convertible Notes 219   219    
Cumulative translation adjustment (28)       (28)
Net loss (16,041)     (16,041)  
Ending balance at Sep. 30, 2020 (4,811) $ 5 135,239 (139,645) (410)
Ending balance (in shares) at Sep. 30, 2020   45,442,000      
Beginning balance at Jun. 30, 2020 $ 0        
Beginning balance (in shares) at Jun. 30, 2020 0        
Ending balance at Sep. 30, 2020 $ 0        
Ending balance (in shares) at Sep. 30, 2020 0        
Beginning balance at Jun. 30, 2020 $ 514 $ 4 132,045 (131,078) (457)
Beginning balance (in shares) at Jun. 30, 2020   43,555,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 9   9    
Exercise of stock options, net of vesting of restricted shares (in shares)   33,000      
Vesting of restricted stock units (in shares)   388,000      
Issuance of common stock for payment of legal, earned bonus, and board of director fees 225   225    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   164,000      
Sale of common stock 1,342 $ 1 1,341    
Sale of common stock (in shares)   1,301,665      
Stock-based compensation expense 1,708   1,708    
Reacquisition of equity component of Senior Convertible Note (89)   (89)    
Cumulative translation adjustment 47       47
Net loss (8,567)     (8,567)  
Ending balance at Sep. 30, 2020 $ (4,811) $ 5 $ 135,239 $ (139,645) $ (410)
Ending balance (in shares) at Sep. 30, 2020   45,442,000