Quarterly report pursuant to Section 13 or 15(d)

CONDENSED BALANCE SHEETS (Parenthetical)

v3.21.1
CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2021
Dec. 31, 2020
Sep. 18, 2020
Sep. 17, 2020
Statement of Financial Position [Abstract]        
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001    
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000    
Preferred stock, shares outstanding (in shares) 2,218,732 2,218,732    
Common stock, par value (in dollars per share) $ 0.001 [1] $ 0.001 [1]   $ 0.001
Common stock, shares authorized (in shares) 135,000,000 [1] 135,000,000 [1] 135,000,000  
Common stock, shares outstanding (in shares) 60,361,547 [1] 45,908,779 [1] 44,663,990  
[1] Adjusted for the 1-for-10 reverse stock split.