v3.26.1
SEGMENTS (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
segment
Jun. 30, 2025
USD ($)
Segment Reporting [Abstract]        
Number of operating segments | segment     1  
Number of reportable segments | segment     1  
Segment Reporting [Line Items]        
Revenue $ 0 $ 212 $ 212 $ 424
Research and development: 758 6,074 3,629 11,799
Net income (loss) 43,665 (9,703) 35,387 (19,142)
Reporting Segment        
Segment Reporting [Line Items]        
Revenue 0 212 212 424
General and administrative, excluding personnel expenses 3,726 1,472 7,949 2,997
General and administrative, personnel expenses (including share-based compensation) 1,169 2,723 3,020 5,355
Other segment items (49,318) (354) (49,773) (585)
Net income (loss) 43,665 (9,703) 35,387 (19,142)
Reporting Segment | Candid Merger        
Segment Reporting [Line Items]        
Termination fee     50,000  
Reporting Segment | RLYB212        
Segment Reporting [Line Items]        
Research and development: (48) 1,377 8 3,815
Reporting Segment | RLYB116        
Segment Reporting [Line Items]        
Research and development: 525 1,274 921 1,893
Reporting Segment | Other program candidates        
Segment Reporting [Line Items]        
Research and development: 5 95 7 (68)
Reporting Segment | Personnel expenses (including share-based compensation)        
Segment Reporting [Line Items]        
Research and development: 180 3,161 2,460 5,750
Reporting Segment | Other expenses        
Segment Reporting [Line Items]        
Research and development: $ 96 $ 167 $ 233 $ 409