Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 29, 2020	Mar. 02, 2019	Feb. 29, 2020	Mar. 02, 2019	Jun. 01, 2019
Income Tax Disclosure [Abstract]
Income tax provision	$ 181	$ 305	$ 438	$ 754
Effective income tax rate			(365.10%)	(383.30%)
U.S. statutory tax rate			21.00%
Deferred tax liability, undistributed foreign earnings	300		$ 300		$ 200
Liability for uncertain tax positions related to continuing operations, excluding interest and penalties	100		100
Liability for uncertain tax provisions	0		0		100
Deferred tax valuation allowance	$ 12,000		$ 12,000		$ 11,700

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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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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Amount recognized for uncertainty in income taxes classified as noncurrent.

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