Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Stock-based Compensation - Stock Option Activity (Details)

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Note 12 - Stock-based Compensation - Stock Option Activity (Details) - $ / shares
9 Months Ended
Dec. 31, 2023
Jan. 01, 2023
Outstanding, Weighted-average exercise price, beginning balance (in dollars per share) $ 7.32 $ 7.39
Outstanding, Shares, beginning balance (in shares) 735,500 635,500
Granted, Weighted-average exercise price (in dollars per share) $ 5.18 $ 6.54
Number of options issued (in shares) 130,000 120,000
Exercised, Weighted-average exercise price (in dollars per share) $ 0 $ 4.92
Exercised, Shares (in shares) 0 (20,000)
Expired, Weighted-average exercise price (in dollars per share) $ 6.14 $ 0
Expired, Shares (in shares) (10,000) 0
Outstanding, Weighted-average exercise price, ending balance (in dollars per share) $ 7.01 $ 7.32
Outstanding, Shares, ending balance (in shares) 855,500 735,500
Exercisable, Weighted-average exercise price (in dollars per share) $ 7.41 $ 7.42
Exercisable, Shares (in shares) 665,500 499,000