Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	May 29, 2022	May 30, 2021	May 31, 2020	May 26, 2019
Tax Credit Carryforward [Line Items]
Effective tax rate for the fiscal year benefit	16.59%	11.20%	28.63%
Income tax benefit	$ 121	$ 5,898	$ 4,342
Researach and development tax credit carryforward			2,800
Tax reform/CARES Act benefit	0	0	2,770
Deferred tax asset valuation allowance	31,848	10,460
Unrecognized tax benefits	1,025	942	827	$ 616
Unrecognized tax benefits that would change the effect tax rate if recognized	900
Discontinued Operations | Eat Smart
Tax Credit Carryforward [Line Items]
Income tax benefit	121	$ 5,898	$ 4,342
California
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	37,700
Tax credit carryforward amount	2,100
Indiana
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	30,600
Other States, Tax Board
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	20,800
Minnesota
Tax Credit Carryforward [Line Items]
Tax credit carryforward amount	$ 1,400
Tax credit carryforward, period	15 years
Domestic Tax Authority
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	$ 74,100
Tax credit carryforward amount	$ 2,800
Tax credit carryforward, period	20 years
Deferred tax asset valuation allowance	$ 15,500
Foreign Tax Authority
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	25,900
Deferred tax asset valuation allowance	8,100
State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Deferred tax asset valuation allowance	$ 8,200