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SUPPLEMENTARY INFORMATION (Additional Information) (Details) - Barnes & Noble Education, Inc. - USD ($) $ in Thousands | 3 Months Ended
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Jul. 31, 2025 | Jul. 31, 2024
Supplementary Information Disclosures [Line Items] |  |
Restructuring and other charges | $ 2,896 | $ 5,005
Severance costs related to resignation of former Chief Executive Officer |  | 2,000
Costs associated with legal and advisory professional services restructuring and process improvements and other charges |  | 500
Expense (reversal) related to the termination of liabilities related to a frozen retirement benefit plan |  | $ 1,100

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