Income Taxes - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Feb. 27, 2022	Feb. 27, 2022	May 29, 2022	May 30, 2021	May 31, 2020
Income Tax Disclosure [Abstract]
Tax at U.S. statutory rate			$ (14,548)	$ (2,409)	$ (6,435)
State income taxes, net of federal benefit			(2,195)	(304)	(1,048)
Tax reform/CARES Act			0	0	(2,770)
Change in valuation allowance			10,134	2,667	2,014
Tax credit carryforwards			(436)	(606)	(613)
Other compensation-related activity			234	249	334
Impairment of goodwill			2,347	0	647
Foreign rate differential			(496)	(1,414)	(986)
Other			(985)	(86)	83
Income tax benefit	$ (313)	$ (5,026)	$ (5,945)	$ (1,903)	$ (8,774)

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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