Note H - Accounts and Other Receivables, Net - Summary of Accounts and Other Receivables (Details) - USD ($) $ in Thousands	Dec. 27, 2020	Mar. 29, 2020	Mar. 31, 2019
Accounts receivable, gross, current	$ 12,634	$ 11,345
Less: allowance for doubtful accounts	296	237	$ 585
Accounts and other receivables, net	12,338	11,108
Branded Product Sales [Member]
Accounts receivable, gross, current	7,479	6,789
Franchise and License Royalties [Member]
Accounts receivable, gross, current	4,727	4,299
Other Receivables [Member]
Accounts receivable, gross, current	$ 428	$ 257

Amount of allowance for credit loss on accounts receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant