v3.26.1
CAPITAL STOCK (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended 16 Months Ended
Apr. 22, 2025
Mar. 19, 2025
Jun. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
May 31, 2026
Jul. 23, 2025
Jul. 21, 2025
Feb. 28, 2025
Feb. 03, 2025
Sep. 03, 2024
Jan. 29, 2024
Class of Stock [Line Items]                        
Capital stock, authorized (in shares)     525,000,000 525,000,000   375,000,000            
Common stock, par value (in dollars per share)     $ 0.00001 $ 0.00001 $ 0.00001              
Common stock, authorized (in shares)     500,000,000 500,000,000 350,000,000 350,000,000            
Common stock, outstanding (in shares)     271,742,717 271,742,717 265,424,818              
Common stock, issued (in shares)     271,742,717 271,742,717 265,424,818              
Preferred stock, authorized (in shares)     25,000,000 25,000,000 25,000,000              
Preferred stock, par value (in dollars per share)     $ 0.00001 $ 0.00001 $ 0.00001              
Preferred stock, issued (in shares)     0 0 0              
Preferred stock, outstanding (in shares)     0 0 0              
Issuance and sale of equity securities                     $ 75.0  
Warrant to purchase common stock (in shares)             1,408,588 2,115,384 1,153,846 1,153,846   3,076,923
Exercise price (in dollars per share)               $ 1.30 $ 1.30 $ 1.30   $ 1.30
Warrant exercise period (in years)                 8 years 8 years    
Warrant purchased (in shares)               2,115,384        
Warrants issued (in shares)               1,408,588        
Vifor (International) Ltd. | License                        
Class of Stock [Line Items]                        
Unregistered stock held by customer (in shares)     7,571,429 7,571,429                
At-The-Market Sale Agreement, Authorized April 2022, Amended                        
Class of Stock [Line Items]                        
Number of shares sold in offering (in shares)     3,138,107 3,138,107 23,708,995              
Sale of stock, consideration received, gross     $ 3.4 $ 3.4 $ 43.0              
Aggregate net proceeds from offering     $ 3.2 $ 3.2 $ 42.2              
Public Stock Offering                        
Class of Stock [Line Items]                        
Number of shares sold in offering (in shares)   25,000,000                    
Aggregate net proceeds from offering $ 1.6 $ 46.5                    
Sale of stock, price per share (in dollars per share)   $ 2.00                    
Public Stock Offering - Underwriting Agreement                        
Class of Stock [Line Items]                        
Sale of stock, price per share (in dollars per share)   $ 1.88                    
Over-Allotment Option                        
Class of Stock [Line Items]                        
Number of shares sold in offering (in shares) 850,000 3,750,000                    
Underwriters allotment option, term (in days)   30 days