Unaudited Quarterly Consolidated Financial Information - Diluted Net (Loss) Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended											6 Months Ended			9 Months Ended			12 Months Ended
	May 28, 2023	Feb. 26, 2023	Nov. 27, 2022	Aug. 28, 2022	May 29, 2022	Feb. 27, 2022	Nov. 28, 2021	Aug. 29, 2021	Feb. 28, 2021	Nov. 29, 2020	Aug. 30, 2020	Nov. 27, 2022	Nov. 28, 2021	Nov. 29, 2020	Feb. 26, 2023	Feb. 27, 2022	Feb. 28, 2021	May 28, 2023	May 29, 2022	May 30, 2021
Numerator:
Net loss		$ (36,507)	$ (12,806)	$ (10,966)		$ (13,586)	$ (38,471)	$ (9,387)	$ (6,978)	$ (11,623)	$ (12,410)	$ (23,772)	$ (47,858)	$ (24,033)	$ (60,279)	$ (61,444)	$ (31,011)	$ (99,563)	$ (116,715)	$ (32,294)
Denominator:
Weighted average shares for basic net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838	29,459	29,282	29,958	29,466	29,294
Weighted average shares for diluted net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838	29,459	29,282	29,958	29,466	29,294
Diluted net loss per share (in dollars per share)	$ (1.32)	$ (1.20)	$ (0.43)	$ (0.37)	$ (1.88)	$ (0.46)	$ (1.31)	$ (0.32)	$ (0.24)	$ (0.40)	$ (0.42)	$ (0.80)	$ (1.63)	$ (0.82)	$ (2.02)	$ (2.09)	$ (1.06)	$ (3.32)	$ (3.97)	$ (1.10)
After Discontinued Operations Restatement
Denominator:
Weighted average shares for diluted net loss per share (in shares)													29,448	29,261	29,838
Diluted net loss per share (in dollars per share)													$ (1.63)	$ (0.82)	$ (2.02)
Discontinued Operations
Numerator:
Net loss		$ 0	$ 0	$ 0		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0		$ 0	$ 0
Denominator:
Weighted average shares for basic net loss per share (in shares)		0	0	0		0	0	0	0	0	0	0	0	0	0	0	0		0	0
Weighted average shares for diluted net loss per share (in shares)		0	0	0		0	0	0	0	0	0	0	0	0	0	0	0		0	0
Diluted net loss per share (in dollars per share)		$ 0	$ 0	$ 0		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0		$ 0	$ 0
Discontinued Operations | After Discontinued Operations Restatement
Denominator:
Weighted average shares for diluted net loss per share (in shares)													0	0	0	0	0
Diluted net loss per share (in dollars per share)													$ 0	$ 0	$ 0	$ 0	$ 0
Continuing Operations
Denominator:
Weighted average shares for diluted net loss per share (in shares)																29,459	29,282
Diluted net loss per share (in dollars per share)																$ (2.09)	$ (1.06)
As Reported
Numerator:
Net loss		$ (40,192)	$ (12,449)	$ (11,351)		$ (13,086)	$ (38,441)	$ (9,477)	$ (5,498)	$ (13,301)	$ (11,000)	$ (23,800)	$ (47,918)	$ (24,301)	$ (63,992)		$ (29,799)		$ (114,679)	$ (32,665)
Denominator:
Weighted average shares for basic net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838		29,282		29,466	29,294
Weighted average shares for diluted net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838		29,282		29,466	29,294
Diluted net loss per share (in dollars per share)		$ (1.33)	$ (0.42)	$ (0.38)		$ (0.45)	$ (1.30)	$ (0.32)	$ (0.19)	$ (0.45)	$ (0.38)	$ (0.80)	$ (1.63)	$ (0.83)	$ (2.14)		$ (1.02)		$ (3.90)	$ (1.12)
As Reported | After Discontinued Operations Restatement
Numerator:
Net loss																$ (61,116)
Denominator:
Weighted average shares for basic net loss per share (in shares)																29,459
Weighted average shares for diluted net loss per share (in shares)													29,448	29,261	29,838	29,459	29,282
Diluted net loss per share (in dollars per share)													$ (1.63)	$ (0.83)	$ (2.14)	$ (2.08)	$ (1.02)
Restatement
Numerator:
Net loss		$ 3,685	$ (357)	$ 385		$ (500)	$ (30)	$ 90	$ (1,480)	$ 1,678	$ (1,410)	$ 28	$ 60	$ 268	$ 3,713		$ (1,212)		$ (2,036)	$ 371
Denominator:
Weighted average shares for basic net loss per share (in shares)		0	0	0		0	0	0	0	0	0	0	0	0	0		0		0	0
Weighted average shares for diluted net loss per share (in shares)		0	0	0		0	0	0	0	0	0	0	0	0	0		0		0	0
Diluted net loss per share (in dollars per share)		$ 0.13	$ (0.01)	$ 0.01		$ (0.01)	$ (0.01)	$ 0	$ (0.05)	$ 0.05	$ (0.04)	$ 0	$ 0	$ 0.01	$ 0.12		$ (0.04)		$ (0.07)	$ 0.02
Restatement | After Discontinued Operations Restatement
Numerator:
Net loss																$ (328)
Denominator:
Weighted average shares for basic net loss per share (in shares)																0
Weighted average shares for diluted net loss per share (in shares)													0	0	0	0	0
Diluted net loss per share (in dollars per share)													$ 0	$ 0.01	$ 0.12	$ (0.01)	$ (0.04)
As Restated
Numerator:
Net loss		$ (36,507)	$ (12,806)	$ (10,966)		$ (13,586)	$ (38,471)	$ (9,387)	$ (6,978)	$ (11,623)	$ (12,410)	$ (23,772)	$ (47,858)	$ (24,033)	$ (60,279)		$ (31,011)		$ (116,715)	$ (32,294)
Denominator:
Weighted average shares for basic net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838		29,282		29,466	29,294
Weighted average shares for diluted net loss per share (in shares)		30,304	29,634	29,577		29,482	29,471	29,424	29,323	29,280	29,242	29,605	29,448	29,261	29,838		29,282		29,466	29,294
Diluted net loss per share (in dollars per share)		$ (1.20)	$ (0.43)	$ (0.37)		$ (0.46)	$ (1.31)	$ (0.32)	$ (0.24)	$ (0.40)	$ (0.42)	$ (0.80)	$ (1.63)	$ (0.82)	$ (2.02)		$ (1.06)		$ (3.97)	$ (1.10)
As Restated | After Discontinued Operations Restatement
Numerator:
Net loss																$ (61,444)
Denominator:
Weighted average shares for basic net loss per share (in shares)																29,459
Weighted average shares for diluted net loss per share (in shares)													29,448	29,261	29,838	29,459	29,282
Diluted net loss per share (in dollars per share)													$ (1.63)	$ (0.82)	$ (2.02)	$ (2.09)	$ (1.06)