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Note 1 - General - Summary of Net Sales by Revenue Recognition Method as a Percentage of Total Sales (Details)
3 Months Ended 9 Months Ended
Dec. 28, 2024
Dec. 23, 2023
Dec. 28, 2024
Dec. 23, 2023
Revenue, percentage 100.00% 100.00% 100.00% 100.00%
Transferred at Point in Time [Member]        
Revenue, percentage 86.50% 88.80% 86.20% 89.90%
Transferred over Time [Member]        
Revenue, percentage 13.50% 11.20% 13.80% 10.10%