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NONCONTROLLING INTEREST - Schedule of ownership interest in subsidiary (Detail) - Barnes & Noble Education, Inc.	Jul. 31, 2025 shares
NONCONTROLLING INTEREST
Number shares by noncontrolling interest	22,845,101
Total BNED Common Stock outstanding	34,053,847
Total percentage of ownership	100.00%
Total Stockholders' Equity Attributable to Immersion Stockholder
NONCONTROLLING INTEREST
Number of shares by Immersion	11,208,746
Direct Ownership [Member]
NONCONTROLLING INTEREST
Percentage of ownership by noncontrolling interests	67.10%
Direct Ownership [Member] | Total Stockholders' Equity Attributable to Immersion Stockholder
NONCONTROLLING INTEREST
Percentage of ownership by Immersion	32.90%

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