Debt - Narrative (Details)						1 Months Ended	3 Months Ended	12 Months Ended
	May 10, 2024 USD ($)	May 28, 2023 USD ($)	May 22, 2023 USD ($)	Jan. 09, 2023 USD ($)	Dec. 31, 2020 USD ($)	Apr. 30, 2022 USD ($)	May 26, 2024 USD ($)	May 26, 2024 USD ($)	May 28, 2023 USD ($)	May 29, 2022 USD ($)	Feb. 07, 2023 USD ($)
Debt Instrument [Line Items]
Payments for debt issuance costs								$ 231,000	$ 6,050,000	$ 821,000
Loss on debt extinguishment								0	23,741,000	0
Embedded derivative liability							$ 64,900,000	64,900,000
Amortization of debt discount		$ 100,000						2,400,000
Debt derivative liability, related party		64,900,000					25,400,000	25,400,000	64,900,000
Total principal amount of long-term debt		150,233,000					164,463,000	164,463,000	150,233,000
Debt issuance costs, line of credit arrangements, net							1,600,000	1,600,000
Revolving credit facility		16,809,000					19,691,000	19,691,000	16,809,000
Proceeds from sales of property and equipment								0	0	$ 1,141,000
Other Current Assets
Debt Instrument [Line Items]
Debt issuance costs, line of credit arrangements, net		900,000							900,000
Other Noncurrent Assets
Debt Instrument [Line Items]
Debt issuance costs, line of credit arrangements, net		1,400,000							1,400,000
Recurring
Debt Instrument [Line Items]
Debt derivative liability, related party		64,900,000					25,400,000	25,400,000	64,900,000
Equipment Sale and Leaseback Agreements
Debt Instrument [Line Items]
Sale leaseback transaction, net book value			$ 10,000,000
Option to repurchase, term			7 years
Proceeds from sales of property and equipment									7,700,000
Sale leaseback transaction difference									2,300,000
Price at end of term			$ 1.00
Quarterly rental payment to be received			0.025
Rental payment, purchase price less cumulative paydown payments made			1.50%
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Line of credit, available borrowing capacity							$ 12,300,000	$ 12,300,000
Prior Term Loan Facility
Debt Instrument [Line Items]
Debt instrument, face amount					$ 170,000,000
Percent of prepayment penalty					3.00%
Debt prepayment cost			$ 12,900,000
Write off of deferred debt issuance costs			7,600,000
Extinguishment of debt, third party fees			3,300,000
Prior Term Loan Facility | SOFR
Debt Instrument [Line Items]
Base spread on variable rate					2.00%
Refinanced Revolver
Debt Instrument [Line Items]
Percent of prepayment penalty				3.00%
Refinanced Revolver | Third Parties
Debt Instrument [Line Items]
Debt issuance costs		62,500							62,500
Refinanced Revolver | BMO
Debt Instrument [Line Items]
Debt issuance costs		4,200,000							4,200,000
Payments for debt issuance costs									1,100,000
Debt issuance costs, paid-in-kind		$ 3,100,000							$ 3,100,000
Refinanced Revolver | SOFR
Debt Instrument [Line Items]
Base spread on variable rate				8.50%
Refinanced Revolver | Base Rate
Debt Instrument [Line Items]
Base spread on variable rate				7.50%
Refinanced Revolver | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, maximum capacity	$ 40,000,000		40,000,000	$ 60,000,000	$ 75,000,000						$ 40,000,000
Line of credit, additional capacity						$ 20,000,000
Debt issuance costs						$ 700,000
Base spread on variable rate	4.25%
Commitment fee percentage				0.375%
Effective interest rate		12.16%		2.00%			8.35%	8.35%	12.16%
Write off of deferred debt issuance costs									$ 1,200,000
Total principal amount of long-term debt		$ 16,800,000					$ 19,700,000	$ 19,700,000	16,800,000
Line of credit reduction			$ 4,000,000
Coverage ratio			1.00
Availability of line of credit			10.00%
Debt covenant, availability of line of credit, amount			$ 4,000,000
Fees paid to lenders			1,200,000
Incremental borrowing capacity	$ 2,500,000
Incremental interest expense	44,000
Payments of debt amendment fee	$ 50,000
Refinanced Revolver | Revolving Credit Facility | At Entry into the Revolving Loan Amendment
Debt Instrument [Line Items]
Fees paid to lenders			800,000
Refinanced Revolver | Revolving Credit Facility | Upon Full Repayment Or Change Of Control
Debt Instrument [Line Items]
Fees paid to lenders			400,000
Refinanced Revolver | Revolving Credit Facility | Minimum | SOFR
Debt Instrument [Line Items]
Base spread on variable rate				2.00%
Refinanced Revolver | Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Base spread on variable rate				1.00%
Refinanced Revolver | Revolving Credit Facility | Maximum | SOFR
Debt Instrument [Line Items]
Base spread on variable rate				2.50%
Refinanced Revolver | Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Base spread on variable rate				1.50%
Term Loan Credit Agreement
Debt Instrument [Line Items]
Debt instrument, face amount			$ 142,300,000
Debt instrument, interest rate, stated percentage			10.00%
Paid-in-cash interest			3.00%
Guarantor obligations			$ 4,000,000				$ 4,500,000
Term Loan | Line of Credit
Debt Instrument [Line Items]
Effective interest rate							22.50%	22.50%
Total principal amount of long-term debt		$ 142,503,000					$ 157,313,000	$ 157,313,000	$ 142,503,000