Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common stock
Preferred Stock
Additional Paid-in Capital
Accumulated deficit
Balance at the beginning (in shares) at Dec. 31, 2020   75,004,127 1,257,143    
Balance at the beginning at Dec. 31, 2020 $ 24,562 $ 75 $ 1 $ 202,276 $ (177,790)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of shares of common stock and pre-funded warrants in underwritten public offering, net (in shares)   13,971,889      
Issuance of shares of common stock and pre-funded warrants in underwritten public offering, net 37,653 $ 14   37,639  
Exercise of stock options and warrants (in shares)   128,800      
Exercise of stock options and warrants 172     172  
Stock-based compensation 1,448     1,448  
Net loss (30,680)       (30,680)
Balance at the end (in shares) at Mar. 31, 2021   89,104,816 1,257,143    
Balance at the end at Mar. 31, 2021 33,155 $ 89 $ 1 241,535 (208,470)
Balance at the beginning (in shares) at Dec. 31, 2021   112,794,203 0    
Balance at the beginning at Dec. 31, 2021 23,082 $ 113 $ 0 285,135 (262,166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 5,312     5,312  
Net loss (22,051)       (22,051)
Balance at the end (in shares) at Mar. 31, 2022   112,794,203 0    
Balance at the end at Mar. 31, 2022 $ 6,343 $ 113 $ 0 $ 290,447 $ (284,217)