v3.26.1
NONCONTROLLING INTEREST - Schedule of effect of changes in ownership interest in subsidiary (Detail) - USD ($)
$ in Thousands
11 Months Ended 12 Months Ended
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
NONCONTROLLING INTEREST      
Net Income (Loss) Attributable to Immersion Stockholders   $ 4,524 $ 64,284
Barnes & Noble Education, Inc.      
NONCONTROLLING INTEREST      
Net Income (Loss) Attributable to Immersion Stockholders $ 64,284 4,524  
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 56,444 313  
Total effect of changes in ownership interest on equity attributable to Immersion stockholders $ 120,728 $ 4,837