Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Changes in Stockholders' Equity

v3.21.1
Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Beginning balance at Dec. 31, 2018 $ 31,225 $ 5 $ 248,938 $ (217,718)
Beginning balance (in shares) at Dec. 31, 2018   4,797,198    
Net loss (53,710)     (53,710)
Stock-based compensation expense 1,828   1,828  
Common stock issued through employee stock purchase and stock option plans 37   37  
Common stock issued through employee stock purchase plan and stock option plan (in shares)   3,684    
Common stock issued, net of expenses 30,530 $ 5 30,525  
Common stock issued, net of expenses (in shares)   4,773,692    
Common stock issued for conversion 2,984   2,984  
Common stock issued for conversion of Notes (in shares)   162,600    
Common stock issued for exercise of stock options 12   12  
Common stock issued for exercise of stock options (in shares)   2,252    
Common stock issued for vested restricted stock units (11)   (11)  
Common stock issued for vested restricted stock units (in shares)   1,946    
Ending balance at Dec. 31, 2019 $ 12,895 $ 10 284,313 (271,428)
Ending balance (in shares) at Dec. 31, 2019 9,741,372 9,741,372    
Net loss $ (55,185)     (55,185)
Stock-based compensation expense 2,220   2,220  
Common stock issued through employee stock purchase and stock option plans 28   28  
Common stock issued through employee stock purchase plan and stock option plan (in shares)   4,652    
Common stock issued, net of expenses 57,184 $ 9 57,175  
Common stock issued, net of expenses (in shares)   9,156,304    
Common stock issued for conversion $ 5,222 $ 1 5,221  
Common stock issued for conversion of Notes (in shares)   638,809    
Common stock issued for exercise of stock options (in shares) 166      
Common stock issued for Commitment Shares $ 602   602  
Common stock issued for Commitment Shares (in shares)   70,910    
Common stock issued for vested restricted stock units (208)   (208)  
Common stock issued for vested restricted stock units (in shares)   51,651    
Ending balance at Dec. 31, 2020 $ 22,758 $ 20 $ 349,351 $ (326,613)
Ending balance (in shares) at Dec. 31, 2020 19,663,698 19,663,698