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Income Taxes - Additional Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
May 27, 2023
May 27, 2023
May 28, 2022
May 29, 2021
Operating Loss Carryforwards [Line Items]        
U.S. federal statutory income tax rate   21.00% 21.00% 21.00%
Creditable minimum tax credit percentage on adjusted financial statement income 15.00% 15.00%    
Excise tax percentage on corporate stock buybacks 1.00% 1.00%    
Investment tax credit percentage for qualified property 25.00% 25.00%    
Research and development (R&D) tax credits $ 900,000      
Deferred tax liability, undistributed earnings of foreign subsidiaries 24,000 $ 24,000 $ 24,000  
Deferred tax valuation allowance 1,375,000 1,375,000 3,474,000  
Foreign tax credits 26,000 26,000 1,782,000  
Income taxes paid, net   4,800,000 1,500,000 $ 100,000
Income tax provision   2,697,000 (2,168,000) $ 653,000
Liability for uncertain tax positions related to continuing operations, excluding interest and penalties 0 0 100,000  
Liability for uncertain tax positions fully utilized 100,000 100,000    
Liability for interest and penalties 0 $ 0 0  
Maximum        
Operating Loss Carryforwards [Line Items]        
Amortize period of tax credits research and development   15 years    
Deferred tax liability, undistributed earnings of foreign subsidiaries 100,000 $ 100,000 100,000  
Maximum | German Audit        
Operating Loss Carryforwards [Line Items]        
Income tax provision   $ 100,000    
Minimum        
Operating Loss Carryforwards [Line Items]        
Amortize period of tax credits research and development   5 years    
State and Local Jurisdiction        
Operating Loss Carryforwards [Line Items]        
Operating Loss Carryforwards 2,100,000 $ 2,100,000 2,400,000  
Valuation allowance pertaining to deferred tax assets     200,000  
Foreign Tax Authority        
Operating Loss Carryforwards [Line Items]        
Operating Loss Carryforwards 200,000 200,000 400,000  
Foreign tax credits 1,800,000 1,800,000    
Foreign tax credits $ 1,800,000 $ 1,800,000    
Valuation allowance pertaining to deferred tax assets     $ 1,300,000