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Note 1 - General (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Mar. 30, 2024
Mar. 25, 2023
Mar. 26, 2022
Accounts Receivable, after Allowance for Credit Loss     $ 39,700
Inventory Valuation Reserves $ 300 $ 300  
Goodwill and Intangible Asset Impairment 0 0  
Finite-Lived Intangible Asset, Expected Amortization, Year One 5,400    
Finite-Lived Intangible Asset, Expected Amortization, Year Two 4,200    
Finite-Lived Intangible Asset, Expected Amortization, Year Three 2,600    
Finite-Lived Intangible Asset, Expected Amortization, Year Four 2,000    
Finite-Lived Intangible Asset, Expected Amortization, Year Five 900    
Unamortized Catalog Costs 0    
Investments 100 200  
Share-Based Payment Arrangement, Expense 4,500 3,400 2,300
Vendor Rebates 600 600 1,000
Cooperative Advertising Amount 1,100 1,000 800
Advertising Expense 1,600 1,200 1,100
Cost of Goods and Services Sold 175,675 162,214 146,520
Realized Gain (Loss), Foreign Currency Transaction, before Tax 100 700 100
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax 100 400 $ 100
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 900 1,100  
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax 100 100  
AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax $ 100 $ 100  
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.5 $ 0.5  
Dilutive Securities, Effect Per Share on Earnings (in dollars per share) $ 0.03 $ 0.02 $ 0.02
Foreign Exchange Contract [Member]      
Derivative Asset, Notional Amount $ 1,800    
Cargo and Freight [Member]      
Cost of Goods and Services Sold 3,100 $ 2,900 $ 2,700
Shipping and Handling [Member]      
Cost of Goods and Services Sold $ 500 700 $ 800
Prepaid Expenses and Other Current Assets [Member]      
Unamortized Catalog Costs   $ 100  
Maximum [Member]      
Finite-Lived Intangible Asset, Useful Life (Year) 15 years