Note K - Long-term Debt - Summary of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 29, 2020	Mar. 31, 2019
Less: unamortized debt issuance costs		$ (3,860)	$ (4,551)
Long-term debt, net	$ 150,000	146,140	145,449
Senior Secured 2025 Notes [Member] \| Senior Notes [Member]
Senior secured notes		$ 150,000	$ 150,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant