Fair Value of Financial Instruments (Details) $ in Thousands	Jan. 01, 2017 USD ($)
Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Assets at Fair Value	$ 2,417
Level 1 | Fixed Income Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Assets at Fair Value	694
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	399
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	382
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	536
Level 1 | Stock Index Funds | International
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Assets at Fair Value	406
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Assets at Fair Value	1
Level 2 | Cash and Cash Equivalents
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Assets at Fair Value	1
Level 2 | Mexican Peso Forward Contracts
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Liabilities at Fair Value	$ 2,452