Quarterly report pursuant to Section 13 or 15(d)

Statements of Stockholders' Equity

v3.21.2
Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Subscriptions Receivable
Accumulated Deficit
Total
Beginning Balance at Dec. 31, 2019 $ 94 $ 443,129   $ (413,145) $ 30,078
Beginning Balance (in shares) at Dec. 31, 2019 94,213,760        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   891     891
Issuance of common stock, net of issuance costs $ 5 3,546     3,551
Issuance of common stock, net of issuance costs (in shares) 4,816,244        
Net loss       (5,725) (5,725)
Ending Balance at Mar. 31, 2020 $ 99 447,566   (418,870) 28,795
Ending Balance (in shares) at Mar. 31, 2020 99,030,004        
Beginning Balance at Dec. 31, 2019 $ 94 443,129   (413,145) 30,078
Beginning Balance (in shares) at Dec. 31, 2019 94,213,760        
Increase (Decrease) in Stockholders' Equity          
Net loss         (17,498)
Ending Balance at Sep. 30, 2020 $ 157 541,829 $ (135) (430,643) 111,208
Ending Balance (in shares) at Sep. 30, 2020 157,030,012        
Beginning Balance at Mar. 31, 2020 $ 99 447,566   (418,870) 28,795
Beginning Balance (in shares) at Mar. 31, 2020 99,030,004        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   766     766
Issuance of common stock, net of issuance costs $ 28 32,001     32,029
Issuance of common stock, net of issuance costs (in shares) 28,135,057        
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes   (40)     (40)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares) 45,211        
Net loss       (6,222) (6,222)
Ending Balance at Jun. 30, 2020 $ 127 480,293   (425,092) 55,328
Ending Balance (in shares) at Jun. 30, 2020 127,210,272        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   787     787
Subscription receivable   135 (135)    
Subscription receivable (in shares) 197,640        
Net exercise of common stock warrant (in shares) 201,925        
Issuance of common stock, net of issuance costs $ 30 60,614     60,644
Issuance of common stock, net of issuance costs (in shares) 29,420,175        
Net loss       (5,551) (5,551)
Ending Balance at Sep. 30, 2020 $ 157 541,829 (135) (430,643) 111,208
Ending Balance (in shares) at Sep. 30, 2020 157,030,012        
Beginning Balance at Dec. 31, 2020 $ 160 546,422   (442,514) $ 104,068
Beginning Balance (in shares) at Dec. 31, 2020 159,999,917       159,999,917
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   1,111     $ 1,111
Exercise of stock options   9     9
Exercise of stock options (in shares) 5,000        
Issuance of common stock, net of issuance costs $ 1 2,791     2,792
Issuance of common stock, net of issuance costs (in shares) 1,219,023        
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes   (69)     (69)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares) 49,720        
Net loss       (9,842) (9,842)
Ending Balance at Mar. 31, 2021 $ 161 550,264   (452,356) 98,069
Ending Balance (in shares) at Mar. 31, 2021 161,273,660        
Beginning Balance at Dec. 31, 2020 $ 160 546,422   (442,514) $ 104,068
Beginning Balance (in shares) at Dec. 31, 2020 159,999,917       159,999,917
Increase (Decrease) in Stockholders' Equity          
Exercise of stock options (in shares)         146,559
Net loss         $ (37,635)
Ending Balance at Sep. 30, 2021 $ 165 557,707 (8) (480,149) $ 77,715
Ending Balance (in shares) at Sep. 30, 2021 164,518,213       164,518,213
Beginning Balance at Mar. 31, 2021 $ 161 550,264   (452,356) $ 98,069
Beginning Balance (in shares) at Mar. 31, 2021 161,273,660        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   1,182     1,182
Exercise of stock options $ 1 170     171
Exercise of stock options (in shares) 132,184        
Issuance of common stock, net of issuance costs $ 3 5,153     5,156
Issuance of common stock, net of issuance costs (in shares) 3,058,879        
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes   (48)     (48)
Issuance of common stock upon vesting of RSUs, net of shares withheld for employee taxes (in shares) 44,115        
Net loss       (14,022) (14,022)
Ending Balance at Jun. 30, 2021 $ 165 556,721   (466,378) 90,508
Ending Balance (in shares) at Jun. 30, 2021 164,508,838        
Increase (Decrease) in Stockholders' Equity          
Stock-based compensation expense   978     978
Subscription receivable   8 (8)    
Subscription receivable (in shares) 9,375        
Net loss       (13,771) (13,771)
Ending Balance at Sep. 30, 2021 $ 165 $ 557,707 $ (8) $ (480,149) $ 77,715
Ending Balance (in shares) at Sep. 30, 2021 164,518,213       164,518,213