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STOCK-BASED COMPENSATION - Narrative (Details) $ in Thousands |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 30, 2023 shares | Jan. 18, 2022 shares | Jul. 31, 2025 USD ($) shares | Jul. 31, 2024 USD ($) | Apr. 30, 2025 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of available shares consumed for each restricted stock and restricted stock units issued |  | 0.0175 |  |  |
Unrecognized compensation cost |  |  | $ 8,600 |  |
Unrecognized compensation cost, recognized over an estimated weighted-average period |  |  | 1 year 10 months 6 days |  |
Immersion |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  |  | $ 2,500 |  |
Unrecognized compensation cost, recognized over an estimated weighted-average period |  |  | 1 year 3 months 18 days |  |
Stock-based compensation expense |  |  | $ 1,998 | $ 1,472 |
Barnes and Noble Education, Inc. [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  |  | 2,480 | (187) |
Stock options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based payment award vesting period |  | 4 years |  |  |
Stock-based compensation expense |  |  | 0 | 0 |
Stock options | Barnes and Noble Education, Inc. [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  |  | $ 0 | 0 |
Stock options | 2021 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized | shares | 8,146,607 | 3,525,119 |  |  |
Increase in number of common shares reserved for issuance (in shares) | shares | 855,351 | 855,351 |  |  |
Stock options | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based payment award expiration period |  | 7 years |  |  |
RSAs outstanding |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares |  |  | 0 |  |
RSUs outstanding |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares |  |  | 633,000 |  | 1,125,000
Stock-based payment award vesting period |  | 1 year | 3 years |  |
Number of equity award granted (in shares) | shares |  |  | 0 |  |
Performance Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares |  |  | 0 |  |
RSUs, RSAs and PSUs | Immersion |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  |  | $ 1,998 | 1,472 |
RSUs, RSAs and PSUs | Barnes and Noble Education, Inc. [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  |  | $ 2,480 | $ (187) |

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