Note 2 - Advertising Costs (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2023	Jan. 01, 2023
Advertising Expense	$ 267,000	$ 123,000	$ 631,000	$ 370,000

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 720
-SubTopic 35
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483406/720-35-50-1

Name:	us-gaap_AdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration