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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 |  |  |

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