Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Stock-based Compensation - Estimated Fair Value of Stock Options Assumptions (Details)

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Note 13 - Stock-based Compensation - Estimated Fair Value of Stock Options Assumptions (Details) - $ / shares
6 Months Ended
Sep. 26, 2021
Sep. 27, 2020
Number of options issued (in shares) 158,000 110,000
June 10, 2020 [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  
January 4, 2021 [Member]    
Number of options issued (in shares)   110,000
Grant date   Jun. 10, 2020
Dividend yield   6.50%
Expected volatility   30.00%
Risk free interest rate   0.275%
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)   $ 4.92
Fair value per option (in dollars per share)   $ 0.56