Note I - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 27, 2020	Mar. 29, 2020
Real estate taxes	$ 168	$ 75
Insurance	350	263
Marketing	0	369
Other	413	474
Total prepaid expenses and other current assets	$ 931	$ 1,181

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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Name:	us-gaap_PrepaidInsurance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant