v3.26.1
Redeemable Convertible Preferred Stock - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
Jun. 30, 2026
Apr. 16, 2026
Feb. 25, 2026
Dec. 31, 2025
Dec. 31, 2024
Redeemable convertible preferred stock [Line Items]          
Preferred stock, par or stated value per share $ 0.0001   $ 0.0001    
OHB Pediatrics Ltd [Member]          
Redeemable convertible preferred stock [Line Items]          
Common stock, shares, issued       1,010,000 10,000
Director [Member] | OHB Pediatrics Ltd [Member]          
Redeemable convertible preferred stock [Line Items]          
Common stock, shares, issued   7,687,500      
Series A Redeemable Convertible Preferred Stock [Member] | OHB Pediatrics Ltd [Member]          
Redeemable convertible preferred stock [Line Items]          
Preferred Stock, Shares Subscribed but Unissued   32,500,000      
Preferred stock, par or stated value per share   $ 1      
Temporary Equity, Shares Issued   32,500,000      
Temporary Equity, Shares Outstanding   32,500,000      
Preferred Stock, Liquidation Preference, Value   $ 32,500      
Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value $ 50,000        
Preferred Stock, Convertible, Conversion Price $ 1.2