Note J - Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Mar. 30, 2014
Computed “expected” tax expense	$ 3,531,000	$ 6,792,000	$ 4,611,000
State and local income taxes, net of Federal income tax benefit	826,000	1,112,000	773,000
Tax-exempt investment earnings	(9,000)	(63,000)	(110,000)
Change in uncertain tax positions, net	(129,000)	(62,000)	(22,000)
Nondeductible meals and entertainment and other	69,000	(77,000)	(18,000)
	$ 4,288,000	$ 7,702,000	$ 5,234,000