Annual report pursuant to Section 13 and 15(d)

BALANCE SHEETS (Parenthetical)

v3.20.4
BALANCE SHEETS (Parenthetical)
Sep. 18, 2020
shares
Dec. 31, 2020
$ / shares
shares
Sep. 17, 2020
$ / shares
Dec. 31, 2019
$ / shares
shares
Preferred stock        
Preferred stock, par value (in dollars per share) | $ / shares   $ 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   1,500,000
Common stock        
Common stock, par value (in dollars per share) | $ / shares   $ 0.001 $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 135,000,000 135,000,000 [1]   135,000,000
Common stock, shares outstanding (in shares) 44,663,990 45,908,779 [1]   40,608,518 [1]
Reverse stock split ratio 0.1      
[1] Adjusted for the 1-for-10 reverse stock split effected on September 18, 2020.