Annual report pursuant to Section 13 and 15(d)

SUBSEQUENT EVENT (Details)

v3.20.4
SUBSEQUENT EVENT (Details) - SPA - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 19, 2021
Dec. 31, 2020
Subsequent Event [Line Items]    
Common stock sold (in shares)   450,000
Proceeds recognized   $ 0.2
Subsequent Event    
Subsequent Event [Line Items]    
Common stock sold (in shares) 5,941,816  
Proceeds recognized $ 3.1  
Weighted average price per share $ 0.53