Note P - Leases (Details Textual) - USD ($)		3 Months Ended	9 Months Ended
		Dec. 29, 2019	Dec. 29, 2019	Dec. 01, 2019	Apr. 01, 2019	Mar. 31, 2019
Operating Lease, Cost		$ 339,000	$ 899,000
Operating Lease, Right-of-Use Asset		9,274,000	9,274,000		$ 7,804,000
Operating Lease, Liability, Current		1,449,000	1,449,000		1,162,000
Operating Lease, Liability, Noncurrent		8,663,000	8,663,000		$ 7,371,000
Operating Lease, Liability, Total	[1]	10,112,000	10,112,000
NEW YORK
Lessee, Operating Lease, Renewal Term				8 years
Operating Lease, Right-of-Use Asset				$ 1,911,000
Operating Lease, Liability, Total				$ 1,911,000
Restaurant Operating Expense [Member]
Operating Lease, Cost		470,000	1,679,000
General and Administrative Expense [Member]
Operating Lease, Cost		153,000	474,000
Other Income [Member]
Operating Lease, Cost		22,000	63,000
Other Assets [Member]
Deferred Rent Receivables, Net, Noncurrent, Total		$ 32,000,000	$ 32,000,000

[1] The present value of minimum operating lease payments of $1,449 and $8,663 are included in "Current portion of operating lease liabilities" and "Long-term operating lease liabilities," respectively.