Note H - Income Taxes - Summary of Income Tax Examinations (Details) - Earliest Tax Year [Member]	12 Months Ended
	Mar. 28, 2021
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2018 2019 2020
State and Local Jurisdiction [Member] | New York State Division of Taxation and Finance [Member]
Open Tax Year	2018 2019 2020
State and Local Jurisdiction [Member] | New York City Tax Commission [Member]
Open Tax Year	2018 2019 2020
State and Local Jurisdiction [Member] | New Jersey Division of Taxation [Member]
Open Tax Year	2017 2018 2019 2020
State and Local Jurisdiction [Member] | California Franchise Tax Board [Member]
Open Tax Year	2017 2018 2019 2020