Annual report pursuant to Section 13 and 15(d)

Business (Details)

v3.23.1
Business (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 07, 2023
USD ($)
$ / shares
shares
Jul. 07, 2022
Sep. 17, 2021
USD ($)
shares
Jun. 30, 2022
USD ($)
Jan. 31, 2021
USD ($)
shares
Jun. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument                
Conversion ratio   0.0833            
Cash and cash equivalents             $ 13,172 $ 54,585
Net loss             41,658 84,376
Net cash used in operating activities             26,751 70,892
Accumulated deficit             303,824 262,166
Proceeds from upfront fees             19,500  
Prepayment on Notes             14,806 0
AVTX-007                
Debt Instrument                
Proceeds from upfront fees             14,500  
Horizon & Powerscourt Notes | Notes Payable                
Debt Instrument                
Prepayment on Notes       $ 15,000   $ 15,000    
Total principal payments1             21,244 $ 36,050
2023             $ 5,930  
Underwritten Public Offering                
Debt Instrument                
Number of shares issued (in shares) | shares     1,200,000   1,200,000      
Net proceeds     $ 29,000   $ 37,700      
Subsequent Event                
Debt Instrument                
Warrant exercise price (in dollars per share) | $ / shares $ 5.00              
Subsequent Event | Underwritten Public Offering                
Debt Instrument                
Number of shares issued (in shares) | shares 3,770,000              
Net proceeds $ 13,700              
Warrant exercise price (in dollars per share) | $ / shares $ 5.00