Annual report pursuant to Section 13 and 15(d)

Note 9 - Stock-based Compensation - Estimated Fair Value of Stock Options Assumptions (Details)

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Note 9 - Stock-based Compensation - Estimated Fair Value of Stock Options Assumptions (Details) - $ / shares
12 Months Ended
Apr. 03, 2022
Mar. 28, 2021
Mar. 29, 2020
Number of options issued (in shares) 158,000 185,000  
June 9, 2021 [Member]      
Number of options issued (in shares) 158,000    
Grant date Jun. 09, 2021    
Dividend yield 4.00%    
Expected volatility 35.00%    
Risk free interest rate 0.53%    
Contractual term (years) (Year) 10 years    
Expected term (years) (Year) 4 years    
Forfeiture rate 5.00%    
Exercise price (grant-date closing price) per option (in dollars per share) $ 7.98    
Fair value per option (in dollars per share) $ 1.61    
June 10, 2020 [Member]      
Number of options issued (in shares)   75,000 110,000
Grant date   Jan. 04, 2021 Jun. 10, 2020
Dividend yield   4.50% 6.50%
Expected volatility   35.00% 30.00%
Risk free interest rate   0.26% 0.275%
Contractual term (years) (Year)   10 years 10 years
Expected term (years) (Year)   4 years 4 years
Forfeiture rate   5.00% 5.00%
Exercise price (grant-date closing price) per option (in dollars per share)   $ 7.11 $ 4.92
Fair value per option (in dollars per share)   $ 1.30 $ 0.56