Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Deficit), At-The-Market Program (Details)

v3.21.2
Stockholders' Equity (Deficit), At-The-Market Program (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 11, 2021
Feb. 12, 2021
Nov. 05, 2020
Sep. 30, 2021
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
At-The-Market Program [Abstract]              
Aggregate offering price         $ 2,126    
Shares sold (in shares)     7,091,878        
Issuance expenses           $ 1,317 $ 1
2021 Shelf [Member] | Maximum [Member]              
At-The-Market Program [Abstract]              
Aggregate offering price   $ 125,000          
2021 ATM [Member]              
At-The-Market Program [Abstract]              
Shares sold (in shares)       332,600   1,233,543  
Gross proceeds       $ 1,700   $ 5,800  
Issuance expenses       $ 100   $ 300  
2021 ATM [Member] | Maximum [Member]              
At-The-Market Program [Abstract]              
Aggregate offering price $ 40,000