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Long-term Debt Maturities of LT Debt (Details)
$ in Thousands
Sep. 29, 2018
USD ($)
Debt Disclosure [Abstract]  
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value $ 466
Long-term Debt, Maturities, Repayments of Principal in Year Four 537
Long-term Debt, Maturities, Repayments of Principal in Year Three 512
Long-term Debt, Maturities, Repayments of Principal in Year Two 487
Long-term Debt, Maturities, Repayments of Principal in Year Five $ 563