Note 2 - Advertising Costs (Details Textual) - USD ($)  | 
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Dec. 29, 2024  | 
Dec. 31, 2023  | 
Dec. 29, 2024  | 
Dec. 31, 2023  | 
|
| Advertising Expense | $ 151,000 | $ 267,000 | $ 411,000 | $ 631,000 | 
| X | ||||||||||
- Definition 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/exampleRef 
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