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Note R - Leases (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Jun. 28, 2020
Jun. 30, 2019
Mar. 29, 2020
Operating Lease, Cost $ 415 $ 342  
Operating Lease Payments, Net Sublease Income 338    
Operating Lease, Liability, Current 1,702   $ 1,583
Operating Lease, Liability, Noncurrent 8,208   $ 8,532
Restaurant Operating Expense [Member]      
Operating Lease, Cost 579 550  
General and Administrative Expense [Member]      
Operating Lease, Cost 174 170  
Other Income [Member]      
Operating Lease, Cost $ 0 $ 21