Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Changes in Stockholders??? Equity (Deficit)

v3.22.1
Consolidated Statements of Changes in Stockholders’ Equity (Deficit) - USD ($)
$ 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   39,811,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares $ 99   99    
Exercise of stock options, net of vesting of restricted shares (in shares) 185,234 188,000      
Release of restricted stock (in shares)   1,631,000      
Issuance of common stock for payment of legal, earned bonus and board of director fees $ 1,283   1,283    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   1,348,000      
Sales of common stock, net of issuance costs 9,178 $ 1 9,177    
Sale of common stock, net of issuance costs (in shares)   11,629,160      
Stock-based compensation expense 4,492   4,492    
Issuance of common stock upon partial conversions of the Senior Convertible Note 2,267 $ 1 2,266    
Issuance of common stock upon partial conversions of Senior Convertible Note (in shares)   1,764,000      
Reacquisition of equity component of the Senior Convertible Note (1,388)   (1,388)    
Equity classified cash conversion feature of the Senior Convertible Note 219   219    
Cumulative translation adjustment 44       44
Net Loss (22,199)     (22,199)  
Ending balance at Dec. 31, 2020 (1,979) $ 6 144,156 (145,803) (338)
Ending balance (in shares) at Dec. 31, 2020   56,371,000      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options, net of vesting of restricted shares $ 179   179    
Exercise of stock options, net of vesting of restricted shares (in shares) 260,451 261,000      
Release of restricted stock (in shares)   2,494,000      
Issuance of common stock under the 2018 employee stock purchase plan $ 100   100    
Issuance of common stock under the 2018 employee stock purchase plan (in shares)   84,000      
Issuance of common stock for payment of legal, earned bonus and board of director fees 66   66    
Issuance of common stock for payment of legal, earned bonus, and board of director fees (in shares)   99,000      
Sales of common stock, net of issuance costs 94,737 $ 4 94,733    
Sale of common stock, net of issuance costs (in shares)   35,383,000      
Common stock issued pursuant to warrant exercises 20,782   20,782    
Common stock issued pursuant to warrant exercises (in shares)   2,060,000      
Stock-based compensation expense 4,928   4,928    
Reacquisition of equity component of the Senior Convertible Note 0        
Equity classified cash conversion feature of the Senior Convertible Note 0        
Cumulative translation adjustment (14)       (14)
Net Loss (53,522)     (53,522)  
Ending balance at Dec. 31, 2021 $ 65,277 $ 10 $ 264,944 $ (199,325) $ (352)
Ending balance (in shares) at Dec. 31, 2021   96,752,000