Quarterly report pursuant to Section 13 or 15(d)

Equity - Substitute Warrants (Details)

v3.22.2.2
Equity - Substitute Warrants (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
May 24, 2021
USD ($)
$ / shares
shares
May 23, 2021
Sep. 30, 2022
USD ($)
$ / shares
Sep. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
$ / shares
Sep. 30, 2021
USD ($)
Dec. 31, 2021
$ / shares
Class of Stock [Line Items]                
Warrants, exercise price per share | $ / shares     $ 6.29     $ 6.29   $ 9.09
General and administrative     $ 5,012 $ 13,823   $ 21,876 $ 28,382  
Reclassification of legacy NeuroRx warrants to warrant liability             38,220  
Change in fair value of warrant liability     37 16,537   (236) (823)  
Merger agreement                
Class of Stock [Line Items]                
Exchange Ratio 3.16 4.96            
Substitute Warrants                
Class of Stock [Line Items]                
Warrants exercised | shares 4,909,066              
Warrants, exercise price per share | $ / shares $ 2.45              
Unamortized compensation costs     23,800     23,800    
General and administrative         $ 2,300      
Warrant liability $ 53,300              
Reclassification of legacy NeuroRx warrants to warrant liability 38,200              
Change in fair value of warrant liability $ 15,100     $ 16,300   $ (100) $ 400  
Volatility rate               80.00%
Risk-free rate, minimum               0.03%
Risk-free rate, maximum               0.32%
Substitute Warrants | Minimum                
Class of Stock [Line Items]                
Strike price | $ / shares               $ 1.53
Expected term               6 months 25 days
Substitute Warrants | Maximum                
Class of Stock [Line Items]                
Change in fair value of warrant liability     $ 100          
Strike price | $ / shares               $ 3.19
Expected term               3 years 8 months 8 days
Legacy NeuroRx Warrants                
Class of Stock [Line Items]                
Volatility rate               80.00%
Risk-free rate, minimum               0.03%
Risk-free rate, maximum               0.32%
Legacy NeuroRx Warrants | Minimum                
Class of Stock [Line Items]                
Strike price | $ / shares               $ 7.58
Expected term               6 months 25 days
Legacy NeuroRx Warrants | Maximum                
Class of Stock [Line Items]                
Strike price | $ / shares               $ 15.84
Expected term               3 years 8 months 8 days