Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation and Employee Benefits Plans - Changes in Stock Options Outstanding (Details)

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Note 10 - Stock-based Compensation and Employee Benefits Plans - Changes in Stock Options Outstanding (Details) - $ / shares
9 Months Ended 12 Months Ended
Dec. 25, 2021
Mar. 27, 2021
Outstanding, Shares (in shares) 374,808 240,758
Outstanding, weighted average exercise price (in dollars per share) $ 5.00 $ 5.86
Outstanding, Weighted average remaining contractual terms (Year) 7 years 7 months 6 days 7 years 10 months 24 days
Granted, Shares (in shares) 42,000 148,000
Granted, weighted average exercise price (in dollars per share) $ 2.83 $ 3.53
Granted, Weighted average remaining contractual terms (Year) 9 years 9 months 3 days 9 years 2 months 12 days
Forfeited / Expired (in shares) (25,453) (13,950)
Forfeited / Expired (in dollars per share) $ 4.15
Outstanding, Shares (in shares) 391,355 374,808
Outstanding, weighted average exercise price (in dollars per share) $ 4.70 $ 5.00
Exercisable, Shares (in shares) 173,663  
Exercisable, weighted average exercise price (in dollars per share) $ 5.84  
Exercisable, Weighted average remaining contractual terms (Year) 6 years 1 month 24 days  
Expected to vest in the future, Shares (in shares) 217,692  
Expected to vest in the future, weighted average exercise price (in dollars per share) $ 3.05  
Expected to vest in the future, Weighted average remaining contractual terms (Year) 8 years 9 months 7 days