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Organization and Summary of Significant Accounting Policies (Details 1) - Fair Value Measurements Recurring - USD ($)
$ in Thousands
Jul. 01, 2018
Jul. 02, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value $ 2,792 $ 3,720
Fixed Income Funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 850 763
Stock Index Funds | Small Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 298 382
Stock Index Funds | Mid Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 286 391
Stock Index Funds | Large Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 562 519
Stock Index Funds | International    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 793 541
Cash and Cash Equivalents    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 3 3
Mexican Peso Forward Contracts    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value   1,121
Total Liabilities at Fair Value 39  
Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 2,789 2,596
Level 1 | Fixed Income Funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 850 763
Level 1 | Stock Index Funds | Small Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 298 382
Level 1 | Stock Index Funds | Mid Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 286 391
Level 1 | Stock Index Funds | Large Cap    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 562 519
Level 1 | Stock Index Funds | International    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 793 541
Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 3 1,124
Level 2 | Cash and Cash Equivalents    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value 3 3
Level 2 | Mexican Peso Forward Contracts    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Assets at Fair Value   $ 1,121
Total Liabilities at Fair Value $ 39