Note B - Summary of Significant Accounting Policies - Impact of New Standard on Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Apr. 01, 2019	Mar. 31, 2019
Operating Lease, Right-of-Use Asset	$ 9,181	$ 7,804
Other assets	343	496	465
Operating Lease, Liability, Current	1,583	1,162
Operating Lease, Liability, Noncurrent	8,532	7,371
Other liabilities	$ 696	692	$ 1,390
Previous Accounting Guidance [Member]
Operating Lease, Right-of-Use Asset
Other assets		465
Operating Lease, Liability, Current
Operating Lease, Liability, Noncurrent
Other liabilities		1,390
Adjustments for New Accounting Pronouncement [Member]
Operating Lease, Right-of-Use Asset		7,804
Other assets
Operating Lease, Liability, Current		1,162
Operating Lease, Liability, Noncurrent		7,371
Other liabilities		(729)
Balance Sheet Reclassification Adjustments [Member]
Operating Lease, Right-of-Use Asset
Other assets		31
Operating Lease, Liability, Current
Operating Lease, Liability, Noncurrent
Other liabilities		$ 31