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Long-Term Debt (Detail) - USD ($)
9 Months Ended
Apr. 03, 2021
Nov. 24, 2020
Aug. 14, 2020
Jun. 27, 2020
Debt Disclosure [Line Items]        
Increase in revolving line of credit     $ 93,000,000  
Line of Credit Facility, Amount Outstanding $ 90,000,000.0     $ 60,100,000
Additional availability of line of credit 3,000,000.0     4,500,000
Letters of Credit Outstanding, Amount 300,000     400,000
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate   552.00% 4.85%  
2021 (1) 429,000      
2022 2,143,000      
2023 2,190,000      
2024 2,239,000      
2025 2,290,000      
Thereafter 91,144,000      
Total debt 100,435,000      
Unamortized debt issuance costs (519,000)      
Long-term debt, net of debt issuance costs 99,916,000     10,000,000.0
Equipment Term Loan        
Debt Disclosure [Line Items]        
Debt Instrument, Periodic Payment, Principal 94,000      
Long-term debt, net of debt issuance costs 4,500,000   $ 5.0 $ 900,000
JZ Equipment Term Loan (Domain) [Domain]        
Debt Disclosure [Line Items]        
Debt Instrument, Periodic Payment, Principal 100,000      
Long-term debt, net of debt issuance costs $ 6.0 $ 6,000,000.0    
Debt Instrument, Basis Spread on Variable Rate, 2.00% | Line of Credit | Fixed Rate        
Debt Disclosure [Line Items]        
Variable rate on line of credit facility (percent) 2.50%      
Minimum        
Debt Disclosure [Line Items]        
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 3.25%     2.17%
Maximum        
Debt Disclosure [Line Items]        
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate 5.52%     2.18%