Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Unaudited)

v3.20.2
Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Unaudited) - 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 Jun. 30, 2019 $ 0        
Ending balance (in shares) at Jun. 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 52   52    
Exercise of stock options, net of vesting of restricted shares (in shares)   119,000      
Issuance of common stock upon partial conversions of Senior Convertible Note 0        
Reacquisition of equity component of Senior Convertible Note 0        
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 0 $ 1 (1)    
Exercise of common stock warrants pursuant to cashless provision (in shares)   10,913,000      
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 427   427    
Equity classified cash conversion feature of Senior Convertible Notes 0        
Cumulative translation adjustment (3)       (3)
Net loss (6,561)     (6,561)  
Ending balance at Jun. 30, 2019 8,143 $ 4 125,854 (117,294) (421)
Ending balance (in shares) at Jun. 30, 2019   38,902,000      
Beginning balance at Mar. 31, 2019 $ 0        
Beginning balance (in shares) at Mar. 31, 2019 0        
Ending balance at Jun. 30, 2019 $ 0        
Ending balance (in shares) at Jun. 30, 2019 0        
Beginning balance at Mar. 31, 2019 $ 10,807 $ 4 125,421 (114,227) (391)
Beginning balance (in shares) at Mar. 31, 2019   38,331,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 17   17    
Exercise of stock options, net of vesting of restricted shares (in shares)   58,000      
Exercise of common stock warrants pursuant to cashless provision (in shares)   513,000      
Stock-based compensation expense 416   416    
Cumulative translation adjustment (30)       (30)
Net loss (3,067)     (3,067)  
Ending balance at Jun. 30, 2019 8,143 $ 4 125,854 (117,294) (421)
Ending balance (in shares) at Jun. 30, 2019   38,902,000      
Beginning balance at Dec. 31, 2019 $ 0        
Beginning balance (in shares) at Dec. 31, 2019 0        
Ending balance at Jun. 30, 2020 $ 0        
Ending balance (in shares) at Jun. 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 87   87    
Exercise of stock options, net of vesting of restricted shares (in shares)   153,000      
Vesting of restricted stock (in shares)   694,000      
Issuance of common stock for payment of legal, earned bonus, and board of director fees 1,014   1,014    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   1,133,000      
Issuance of common stock upon partial conversions of Senior Convertible Note 2,266   2,266    
Issuance of common stock related to conversion of Senior Convertible Note (in shares)   1,763,675      
Reacquisition of equity component of Senior Convertible Note (1,299)   (1,299)    
Stock-based compensation expense 1,750   1,750    
Equity classified cash conversion feature of Senior Convertible Notes 219   219    
Cumulative translation adjustment (75)       (75)
Net loss (7,474)     (7,474)  
Ending balance at Jun. 30, 2020 514 $ 4 132,045 (131,078) (457)
Ending balance (in shares) at Jun. 30, 2020   43,555,000      
Beginning balance at Mar. 31, 2020 $ 0        
Beginning balance (in shares) at Mar. 31, 2020 0        
Ending balance at Jun. 30, 2020 $ 0        
Ending balance (in shares) at Jun. 30, 2020 0        
Beginning balance at Mar. 31, 2020 $ 1,353 $ 4 129,370 (127,567) (454)
Beginning balance (in shares) at Mar. 31, 2020   40,693,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 70   70    
Exercise of stock options, net of vesting of restricted shares (in shares)   120,000      
Vesting of restricted stock (in shares)   578,000      
Issuance of common stock for payment of legal, earned bonus, and board of director fees 523   523    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   400,000      
Issuance of common stock upon partial conversions of Senior Convertible Note 2,266   2,266    
Issuance of common stock related to conversion of Senior Convertible Note (in shares)   1,764,000      
Reacquisition of equity component of Senior Convertible Note (1,299)   (1,299)    
Stock-based compensation expense 1,115   1,115    
Cumulative translation adjustment (3)       (3)
Net loss (3,511)     (3,511)  
Ending balance at Jun. 30, 2020 $ 514 $ 4 $ 132,045 $ (131,078) $ (457)
Ending balance (in shares) at Jun. 30, 2020   43,555,000