v3.26.3
NONCONTROLLING INTEREST - Schedule of effect of changes in ownership interest in subsidiary (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2026
Jul. 31, 2025
NONCONTROLLING INTEREST    
Net Income (Loss) Attributable to Immersion Stockholders $ 4,876 $ (930)
Barnes & Noble Education, Inc.    
NONCONTROLLING INTEREST    
Net Income (Loss) Attributable to Immersion Stockholders 4,876 (930)
Increase (decrease) in additional paid-in capital as a result of common stock issuances pursuant to vesting of equity awards, and sales of common stock (1,695)  
Total effect of changes in ownership interest on equity attributable to Immersion stockholders $ 3,181 $ (930)