Equity and Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
	Jun. 11, 2024	Apr. 27, 2024	Jan. 27, 2024	Oct. 28, 2023	Jul. 29, 2023	Apr. 29, 2023	Jan. 28, 2023	Oct. 29, 2022	Jul. 30, 2022	Apr. 27, 2024	Apr. 29, 2023	May 01, 2021	Jun. 10, 2024	Jun. 05, 2024	Apr. 30, 2022	Dec. 14, 2015
Common Stock, Shares Authorized		200,000,000				200,000,000				200,000,000	200,000,000			10,000,000,000
Common Stock, Par or Stated Value Per Share		$ 0.01				$ 0.01				$ 0.01	$ 0.01
Preferred Stock, Shares Authorized		5,000,000				5,000,000				5,000,000	5,000,000
Preferred Stock, Par or Stated Value Per Share		$ 0.01				$ 0.01				$ 0.01	$ 0.01
Common Stock, Shares, Outstanding		532,000				526,000				532,000	526,000
Preferred Stock, Shares Outstanding		0				0				0	0
Stock Repurchase Program, Authorized Amount																$ 50,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 26,669								$ 26,669
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation										147,885	347,808
Stock Issued During Period, Shares, Treasury Stock Reissued												2,307,692
Proceeds from Issuance of Common Stock												$ 15,000
Sale of Stock, Price Per Share												$ 6.50
Contract with Customer, Liability												$ 4,131
Contract with Customer, Liability, Current		211				$ 211				$ 211	$ 211
Contract with Customer, Liability, Noncurrent		$ 3,287				$ 3,498				$ 3,287	$ 3,498
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount										32,304	47,404
Preferred Stock, Shares Issued		0				0				0	0
Common Stock, Shares, Issued		558,000				551,000				558,000	551,000				54,234,000
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		$ (27,436)	$ (9,928)	$ 24,854	$ (49,971)	$ (41,852)	$ (22,134)	$ 24,168	$ (50,322)	$ (62,481)	$ (90,140)
Net Income (Loss) Attributable to Parent		$ (27,364)	$ (9,639)	$ 24,180	$ (50,388)	$ (46,250)	$ (25,049)	$ 22,144	$ (52,707)	$ (63,211)	$ (101,862)
Earnings Per Share, Diluted		$ (10.24)	$ (3.60)	$ 9.11	$ (19.03)	$ (17.48)	$ (9.47)	$ 8.37	$ (20.09)	$ (23.75)	$ (38.61)
Earnings Per Share, Basic		$ (10.24)	$ (3.60)	$ 9.11	$ (19.03)	$ (17.48)	$ (9.47)	$ 8.39	$ (20.09)	$ (23.75)	$ (38.61)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		$ 72	$ 289	$ (674)	$ (417)	$ (4,398)	$ (2,915)	$ (2,024)	$ (2,385)	$ (730)	$ (11,722)
Weighted Average Number of Shares Outstanding, Basic		2,673,000	2,673,000	2,655,000	2,648,000	2,646,000	2,646,000	2,637,000	2,624,000	2,662,000	2,638,000
Income (Loss) from Continuing Operations, Per Diluted Share		$ (10.27)	$ (3.71)	$ 9.36	$ (18.87)	$ (15.82)	$ (8.37)	$ 9.14	$ (19.18)	$ (23.47)	$ (34.17)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share		0.03	0.11	(0.25)	(0.16)	(1.66)	(1.10)	(0.77)	(0.91)	(0.28)	(4.44)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share		0.03	0.11	(0.25)	(0.16)	(1.66)	(1.10)	(0.77)	(0.91)	(0.28)	(4.44)
Income (Loss) from Continuing Operations, Per Basic Share		$ (10.27)	$ (3.71)	$ 9.36	$ (18.87)	$ (15.82)	$ (8.37)	$ 9.16	$ (19.18)	$ (23.47)	$ (34.17)
Weighted Average Number of Shares Outstanding, Diluted		2,673,000	2,673,000	2,655,000	2,648,000	2,646,000	2,646,000	2,645,000	2,624,000	2,662,000	2,638,000
Common Stock, Capital Shares Reserved for Future Issuance		17,909,345								17,909,345
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized										4,500,000
Rights Offering Bonus Element													5.03
Pre Reverse Stock Split
Common Stock, Shares, Outstanding		53,156,369								53,156,369
Common Stock, Shares, Issued		55,840,166				55,140,000				55,840,166	55,140,000
Stockholders' Equity, Reverse Stock Split	On June 11, 2024, we completed a reverse stock split of the Company’s outstanding shares of common stock at a ratio of 1-for-100 (the “Reverse Stock Split”), which was previously approved by stockholders at a special meeting held on June 5, 2024. In connection with the Reverse Stock Split, every 100 shares of the common stock issued and outstanding was converted into one share of the Company’s common stock. The Reverse Stock Split reduced the number of shares of the Company’s outstanding common stock from approximately 2,620,495,552 shares (as of June 11, 2024) to approximately 26,204,956 shares, subject to adjustment for rounding. For additional information, see Part II - Item 8. Financial Statements and Supplementary Data - Note 17. Subsequent Events.
Subsequent Event
Stockholders' Equity, Reverse Stock Split	Reverse Stock SplitOn June 11, 2024, we completed a reverse stock split of the Company’s outstanding shares of common stock at a ratio of 1-for-100 (the “Reverse Stock Split”), which was previously approved by stockholders at a special meeting held on June 5, 2024. In connection with the Reverse Stock Split, every 100 shares of the common stock issued and outstanding was converted into one share of the Company’s common stock. No change will be made to the trading symbol for the Company’s shares of Common Stock, “BNED,” in connection with the Reverse Stock Split. The Reverse Stock Split is part of the Company’s plan to regain compliance with the minimum bid price requirement of $1.00 per share required to maintain continued listing on the NYSE.The Reverse Stock Split reduced the number of shares of the Company’s outstanding common stock from approximately 2,620,495,552 shares (as of the date June 11, 2024, when including issuances pursuant to the Transactions) to approximately 26,204,956 shares, subject to adjustment for rounding.The Reverse Stock Split affected all issued and outstanding shares of Common Stock. All outstanding options and restricted stock units, and other securities entitling their holders to purchase or otherwise receive shares of Common Stock were adjusted as a result of the Reverse Stock Split, as required by the terms of each security. The number of shares available to be awarded under the Company’s equity compensation plans will also be appropriately adjusted. Following the Reverse Stock Split, the par value of the Common Stock will remain unchanged at $0.01 per share. The Reverse Stock Split will not change the authorized number of shares of Common Stock or preferred stock. No fractional shares will be issued in connection with the reverse split; instead any fractional shares as a result of the Reverse Stock Split will be rounded up to the next whole number of post-split shares of Common Stock
Rights Offering Bonus Element													5.03