Note D - Revenues - Significant Changes in Deferred Franchise Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 28, 2020	Jun. 30, 2019
Deferred franchise fees at beginning of period	$ 1,917	$ 3,005
Additions to deferred revenue	20	18
Revenue recognized during the period	(81)	(97)
Deferred franchise fees at end of period	$ 1,856	$ 2,926