Quarterly report pursuant to Section 13 or 15(d)

Note E - Revenue and Contract Liabilities - Schedule of Other Revenue (Details)

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Note E - Revenue and Contract Liabilities - Schedule of Other Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Other Revenue $ 817 $ 709 $ 2,794 $ 2,365