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Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Narrative (Details)
 3 Months Ended 12 Months Ended
Jun. 09, 2021
USD ($)
Nov. 03, 2020
USD ($)
Sep. 02, 2020
USD ($)
claimant
Aug. 28, 2022
USD ($)
revenue
product
Aug. 29, 2021
USD ($)
Feb. 28, 2021
USD ($)
May 29, 2022
USD ($)
May 30, 2021
USD ($)
Dec. 13, 2021
USD ($)
Accounting Policies [Line Items]                  
Number of product category | product       2          
Number of revenue category | revenue       3          
Debt issuance cost, current portion       $ 1,500,000     $ 1,500,000    
Debt issuance cost, noncurrent portion       3,600,000     4,000,000.0    
Cash flow hedge expected to be reclassified within twelve months       300,000          
Proceeds from sales of property and equipment       0 $ 1,082,000        
Gain on sale of property       0 (16,000)        
Inventories       64,285,000     66,845,000    
Property and equipment, net       129,024,000     130,435,000    
Proceeds from sale of BreatheWay, net       3,135,000 0        
Gain on sale       2,108,000 $ 0        
Deferred revenue       803,000     919,000    
Revenue recognized included in the contract liability       300,000          
Insurance recoveries           $ 1,600,000      
Compliance Matters                  
Accounting Policies [Line Items]                  
Number of claimants | claimant     1            
Damages sought     $ 10,000,000            
Recoverable amount       0          
Compliance Matters | Minimum                  
Accounting Policies [Line Items]                  
Damages sought   $ 80,000,000              
BreatheWay                  
Accounting Policies [Line Items]                  
Impairment of assets held for sale             0    
Proceeds from sale of BreatheWay, net       3,100,000          
Gain on sale       2,100,000          
Eat Smart | Disposal Group, Disposed of by Sale, Not Discontinued Operations                  
Accounting Policies [Line Items]                  
Consideration for disposition                 $ 73,500,000
Unbilled Revenues                  
Accounting Policies [Line Items]                  
Contract with customer, assets       12,800,000     10,200,000    
Deferred revenue       $ 800,000     900,000    
Customer Relationships                  
Accounting Policies [Line Items]                  
Useful life (in years)       12 years          
Rock Hill South Carolina Distribution Facility                  
Accounting Policies [Line Items]                  
Impairment of assets held for sale               $ 0  
Proceeds from sales of property and equipment $ 1,100,000                
Gain on sale of property $ 600,000                
Prepaid Expenses and Other Current Assets                  
Accounting Policies [Line Items]                  
Debt issuance costs       $ 700,000     700,000    
Prepaid Expenses and Other Current Assets | BreatheWay                  
Accounting Policies [Line Items]                  
Inventories             900,000    
Property and equipment, net             100,000    
Assets held for sale             1,000,000    
Other Assets                  
Accounting Policies [Line Items]                  
Debt issuance costs       $ 1,700,000     $ 1,900,000