Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit)

v3.21.1
Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Other Comprehensive Loss
Beginning balance at Dec. 31, 2019 $ 4,026 $ 4 $ 128,008 $ (123,604) $ (382)
Beginning balance (in shares) at Dec. 31, 2019   39,811      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 16   16    
Exercise of stock options, net of vesting of restricted shares (in shares)   33      
Release of restricted stock (in shares)   116      
Issuance of common stock for payment of legal and board of director fees 492   492    
Issuance of common stock for payment of legal and board of director fees (in shares)   733      
Stock-based compensation expense 635   635    
Equity classified cash conversion feature of Senior Convertible Note 219   219    
Cumulative translation adjustment (72)       (72)
Net loss (3,963)     (3,963)  
Ending balance at Mar. 31, 2020 1,353 $ 4 129,370 (127,567) (454)
Ending balance (in shares) at Mar. 31, 2020   40,693      
Beginning balance at Dec. 31, 2020 (1,979) $ 6 144,156 (145,803) (338)
Beginning balance (in shares) at Dec. 31, 2020   56,371      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares 65   65    
Exercise of stock options, net of vesting of restricted shares (in shares)   120      
Release of restricted stock (in shares)   183      
Issuance of common stock for payment of legal and board of director fees 66   66    
Issuance of common stock for payment of legal and board of director fees (in shares)   99      
Sales of common stock, net of issuance costs 29,705 $ 1 29,704    
Sales of common stock, net of issuance costs (in shares)   14,431      
Stock-based compensation expense 1,055   1,055    
Equity classified cash conversion feature of Senior Convertible Note 0        
Cumulative translation adjustment 10       10
Net loss (12,363)     (12,363)  
Ending balance at Mar. 31, 2021 $ 16,559 $ 7 $ 175,046 $ (158,166) $ (328)
Ending balance (in shares) at Mar. 31, 2021   71,204