Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS??? EQUITY

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CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Total
Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Beginning balance at Dec. 31, 2020 $ 109,090 $ 61 $ 3,309 $ 922,042 $ (816,322)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Common stock issuances     387 88,776  
Share-based compensation, net     23 2,656  
Warrant exercises     60 8,117  
Warrant cancellation       (218)  
Net loss (26,985)       (26,985)
Ending balance at Mar. 31, 2021 181,906 61 3,779 1,021,373 (843,307)
Beginning balance at Dec. 31, 2021 418,301 61 4,774 1,344,526 (931,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Common stock issuances     454 171,204  
Share-based compensation, net     1 906  
Share-based payments       395  
Net loss (66,606)       (66,606)
Ending balance at Mar. 31, 2022 $ 524,655 $ 61 $ 5,229 $ 1,517,031 $ (997,666)