Correction of Errors in Previously Reported Fiscal Year 2022 and 2021 Annual Financial Statements - Statement of Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended									6 Months Ended			9 Months Ended			12 Months Ended
	Feb. 26, 2023	Nov. 27, 2022	Aug. 28, 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
Cash flows from operating activities:
Consolidated net loss	$ (36,507)	$ (12,806)	$ (10,966)	$ (13,586)	$ (38,471)	$ (9,387)	$ (6,978)	$ (11,623)	$ (12,410)	$ (23,772)	$ (47,858)		$ (60,279)	$ (61,444)	$ (31,011)	$ (99,563)	$ (116,715)	$ (32,294)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Impairment of goodwill and long-lived and indefinite-lived assets										1,300	32,057		300	32,057		1,300	78,146	0
Depreciation, amortization of intangibles and amortization of debt costs			4,354			5,065			5,102	7,294	10,994		10,507	14,547	14,808	13,285	18,061	19,867
Loss on debt extinguishment																23,741	0	1,110
Deferred taxes			(17)			(2,115)			(4,647)	(13)	(4,964)		57	(5,471)	(7,627)	357	(6,825)	(7,874)
Loss on disposal of property and equipment related to restructuring, net									6,005					5,185		0	5,185	10,143
Change in investment in non-public company, fair value															11,800	0	0	11,469
Non-cash restructuring and impairment of assets charges						(92)					(92)				7,881	640	0	0
Stock-based compensation expense			785			620			892	1,893	1,306		2,796	1,928	2,584	3,612	2,608	3,360
Loss on Sale of Eat Smart														235		0	336	0
Net loss on disposal of property and equipment						16			(11)	22	22			25	39	38	152	61
Provision (benefit) for expected credit losses						60					196		200	(14)	284	163	(14)	940
Other, net			(18)			(70)			21	86	(111)		101	(551)	(12)	86	(426)	(74)
Changes in current assets and current liabilities:
Accounts receivable, net			7,238			7,997			11,179	12,483	4,541		8,943	(7,525)	6,345	10,824	(6,138)	5,775
Inventory, net			2,587			545			6,413	(9,576)	(8,999)		(14,847)	(10,372)	(9,515)	(14,811)	(2,180)	(2,819)
Prepaid expenses and other current assets			(739)			(2,602)			1,366	(725)	(1,938)		(1,309)	(1,440)	1,715	2,156	(689)	8,281
Accounts payable			581			1,517			917	11,709	15,200		11,330	13,534	6,372	16,038	9,343	(5,982)
Accrued compensation			(2,865)			(3,131)			(139)	(4,636)	(5,090)		(1,895)	(2,027)	2,184	(4,483)	(2,546)	3,270
Other accrued liabilities			183			2,870			613	2,777	1,275		8,570	(70)	3,536	7,166	(873)	810
Deferred revenue			(116)			86			125	(188)	30		1,792	662	893	3,136	(18)	428
Net cash (used in) provided by operating activities			(1,101)			1,379			17,226	(3,454)	(3,431)		(15,179)	(20,741)	11,386	(17,441)	(22,593)	16,471
Cash flows from investing activities:
Eat Smart sale net working capital adjustment														(2,390)		0	(9,839)	0
Proceeds from sale of investment in non-public company						45,100					45,100			45,100		0	45,100	0
Purchases of property and equipment			(3,361)			(8,461)			(4,828)	(7,209)	(13,885)		(14,309)	(19,843)	(12,169)	(21,482)	(29,940)	(25,223)
Proceeds from sales of property and equipment						1,082			4,855		1,082			1,096	12,885	0	1,141	12,913
Net cash (used in) provided by investing activities			(226)			37,721			27	(4,074)	32,297		1,357	97,463	716	(4,811)	79,962	(12,310)
Cash flows from financing activities:
Proceeds from long-term debt													3,367		150,000	150,000	20,000	170,000
Payments on long-term debt			(27)			(41,388)			(8,030)	(76)	(41,426)		(3,199)	(86,376)	(114,095)	(123,690)	(86,411)	(114,130)
Proceeds from line of credit			4,000			8,000			11,000	8,800	26,000		18,400	45,011	83,000	31,450	55,111	100,000
Payments on line of credit						(5,000)			(19,400)	(800)	(13,000)		(42,400)	(34,111)	(119,400)	(54,640)	(44,111)	(148,400)
Payments for debt issuance costs						(132)			(512)		(132)		(3,669)	(169)	(9,615)	(6,050)	(821)	(10,484)
Taxes paid by Company for employee stock plans			(67)			(428)			(82)	(209)	(512)		(274)	(518)	(297)	(274)	(789)	(405)
Net cash provided by (used in) financing activities			3,906			(38,948)			(17,024)	12,715	(29,070)		15,129	(76,163)	(10,407)	39,700	(57,021)	(3,419)
Net increase in cash, cash equivalents and restricted cash			2,579			152			229	5,187	(204)		1,307	559	1,695	17,448	348	742
Cash, cash equivalents and restricted cash, beginning of period	6,830	4,222	1,643	1,091	1,447	1,295		589	553	1,643	1,295	$ 553	1,643	1,295	553	1,643	1,295	553
Cash, cash equivalents and restricted cash, end of period	2,950	6,830	4,222	1,854	1,091	1,447	2,248		589	6,830	1,091		2,950	1,854	2,248	19,091	1,643	1,295
As Reported
Cash flows from operating activities:
Consolidated net loss			(11,351)			(9,477)			(11,000)	(23,800)	(47,918)	(24,301)	(63,992)		(29,799)		(114,679)	(32,665)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Impairment of goodwill and long-lived and indefinite-lived assets										1,300	32,057		300				78,146
Depreciation, amortization of intangibles and amortization of debt costs			4,356			5,054			5,102	7,237	10,959	9,826	10,392		14,808		17,884	19,867
Loss on debt extinguishment																		1,110
Deferred taxes			(17)			(2,138)			(4,349)	(13)	(4,963)	(7,070)	57		(7,307)		(6,990)	(7,893)
Loss on disposal of property and equipment related to restructuring, net									6,005								5,185	10,143
Change in investment in non-public company, fair value												11,800			11,800			11,800
Non-cash restructuring and impairment of assets charges						(92)					(92)	6,005			7,881
Stock-based compensation expense			785			620			892	1,893	1,306	1,787	2,796		2,584		2,608	3,360
Loss on Sale of Eat Smart																	336
Net loss on disposal of property and equipment						16			(11)	22	22	(34)			39		152	61
Provision (benefit) for expected credit losses						60					196		0		284		(14)	418
Other, net			(18)			(70)			21	86	(111)	21	101		(12)		(426)	(74)
Changes in current assets and current liabilities:
Accounts receivable, net			7,238			7,997			11,179	12,483	4,541	9,661	8,994		6,345		(6,138)	5,775
Inventory, net			2,560			248			6,313	(10,679)	(9,770)	(4,891)	(13,451)		(10,468)		(5,960)	(3,352)
Prepaid expenses and other current assets			(761)			(2,697)			1,353	(585)	(1,784)	1,539	(1,169)		350		(602)	7,941
Accounts payable			581			1,517			917	11,730	15,148	10,539	11,405		6,372		9,343	(5,982)
Accrued compensation			(2,865)			(3,131)			(139)	(4,636)	(5,090)	(1,345)	(1,895)		2,184		(2,546)	3,270
Other accrued liabilities			183			2,838			613	2,777	1,163	4,627	8,570		3,186		(680)	460
Deferred revenue			(116)			86			125	(188)	30	292	1,792		1,243		(18)	778
Net cash (used in) provided by operating activities			(1,533)			831			17,021	(4,481)	(4,306)	18,456	(17,169)		10,600		(24,399)	15,017
Cash flows from investing activities:
Eat Smart sale net working capital adjustment																	(9,839)
Proceeds from sale of investment in non-public company						45,100					45,100						45,100
Purchases of property and equipment			(2,929)			(7,913)			(4,623)	(6,182)	(13,010)	(7,407)	(12,319)		(11,383)		(28,134)	(23,769)
Proceeds from sales of property and equipment						1,082			4,855		1,082	12,885			12,885		1,141	12,913
Net cash (used in) provided by investing activities			206			38,269			232	(3,047)	33,172	5,478	3,347		1,502		81,768	(10,856)
Cash flows from financing activities:
Proceeds from long-term debt													3,367		150,000		20,000	170,000
Payments on long-term debt			(27)			(41,388)			(8,030)	(76)	(41,426)	(20,062)	(3,199)		(114,095)		(86,411)	(114,130)
Proceeds from line of credit			4,000			8,000			11,000	8,800	26,000	24,000	18,400		83,000		55,111	100,000
Payments on line of credit						(5,000)			(19,400)	(800)	(13,000)	(24,400)	(42,400)		(119,400)		(44,111)	(148,400)
Payments for debt issuance costs						(132)			(512)		(132)	(1,237)	(3,669)		(9,615)		(821)	(10,484)
Taxes paid by Company for employee stock plans			(67)			(428)			(82)	(209)	(512)	(297)	(274)		(297)		(789)	(405)
Net cash provided by (used in) financing activities			3,906			(38,948)			(17,024)	12,715	(29,070)	(21,996)	15,129		(10,407)		(57,021)	(3,419)
Net increase in cash, cash equivalents and restricted cash			2,579			152			229	5,187	(204)	1,938	1,307		1,695		348	742
Cash, cash equivalents and restricted cash, beginning of period	6,830	4,222	1,643	1,091	1,447	1,295	2,491	589	553	1,643	1,295	553	1,643	1,295	553	1,643	1,295	553
Cash, cash equivalents and restricted cash, end of period	2,950	6,830	4,222		1,091	1,447	2,248	2,491	589	6,830	1,091	2,491	2,950		2,248		1,643	1,295
Restatement
Cash flows from operating activities:
Consolidated net loss			385			90			(1,410)	28	60	268	3,713		(1,212)		(2,036)	371
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Impairment of goodwill and long-lived and indefinite-lived assets										0	0		0				0
Depreciation, amortization of intangibles and amortization of debt costs			(2)			11			0	57	35	0	115		0		177	0
Loss on debt extinguishment																		0
Deferred taxes			0			23			(298)	0	(1)	70	0		(320)		165	19
Loss on disposal of property and equipment related to restructuring, net									0								0	0
Change in investment in non-public company, fair value												0			0			(331)
Non-cash restructuring and impairment of assets charges						0					0	0			0
Stock-based compensation expense			0			0			0	0	0	0	0		0		0	0
Loss on Sale of Eat Smart																	0
Net loss on disposal of property and equipment						0			0	0	0	0			0		0	0
Provision (benefit) for expected credit losses						0					0		200		0		0	522
Other, net			0			0			0	0	0	0	0		0		0	0
Changes in current assets and current liabilities:
Accounts receivable, net			0			0			0	0	0	0	(51)		0		0	0
Inventory, net			27			297			100	1,103	771	58	(1,396)		953		3,780	533
Prepaid expenses and other current assets			22			95			13	(140)	(154)	13	(140)		1,365		(87)	340
Accounts payable			0			0			0	(21)	52	0	(75)		0		0	0
Accrued compensation			0			0			0	0	0	0	0		0		0	0
Other accrued liabilities			0			32			0	0	112	0	0		350		(193)	350
Deferred revenue			0			0			0	0	0	0	0		(350)		0	(350)
Net cash (used in) provided by operating activities			432			548			205	1,027	875	409	1,990		786		1,806	1,454
Cash flows from investing activities:
Eat Smart sale net working capital adjustment																	0
Proceeds from sale of investment in non-public company						0					0						0
Purchases of property and equipment			(432)			(548)			(205)	(1,027)	(875)	(409)	(1,990)		(786)		(1,806)	(1,454)
Proceeds from sales of property and equipment						0			0		0	0			0		0	0
Net cash (used in) provided by investing activities			(432)			(548)			(205)	(1,027)	(875)	(409)	(1,990)		(786)		(1,806)	(1,454)
Cash flows from financing activities:
Proceeds from long-term debt													0		0		0	0
Payments on long-term debt			0			0			0	0	0	0	0		0		0	0
Proceeds from line of credit			0			0			0	0	0	0	0		0		0	0
Payments on line of credit						0			0	0	0	0	0		0		0	0
Payments for debt issuance costs						0			0		0	0	0		0		0	0
Taxes paid by Company for employee stock plans			0			0			0	0	0	0	0		0		0	0
Net cash provided by (used in) financing activities			0			0			0	0	0	0	0		0		0	0
Net increase in cash, cash equivalents and restricted cash			0			0			0	0	0	0	0		0		0	0
Cash, cash equivalents and restricted cash, beginning of period	0	0	0	$ 0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Cash, cash equivalents and restricted cash, end of period	$ 0	$ 0	$ 0		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0		$ 0		0	0
Eat Smart
Cash flows from investing activities:
Proceeds from divestiture of businesses														$ 73,500		$ 0	73,500	$ 0
Eat Smart | As Reported
Cash flows from investing activities:
Proceeds from divestiture of businesses																	73,500
Eat Smart | Restatement
Cash flows from investing activities:
Proceeds from divestiture of businesses																	$ 0