Note B - Adoption of New Accounting Pronouncements - Remaining Performance Obligations (Details) $ in Thousands	Jun. 24, 2018 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-06-25
Revenue expected to be recognized	$ 271	[1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue expected to be recognized	356
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-03-30
Revenue expected to be recognized	347
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-03-29
Revenue expected to be recognized	336
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-03-28
Revenue expected to be recognized	300
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-03-27
Revenue expected to be recognized	1,592
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue expected to be recognized	$ 3,202

[1] Represents franchise fees expected to be recognized for the remainder of the 2019 fiscal year, which includes international development fees expected to be recognized over the duration of one year or less. Amount does not include $107 of franchise fee revenue recognized for the thirteen weeks ended June 24, 2018.