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Note 6 - Stock-based Compensation - Activity for Stock Options (Details)
 9 Months Ended
Oct. 30, 2021
$ / shares
shares
Outstanding (in shares) | shares 805,701
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 9.96
Granted (in shares) | shares 0
Granted, weighted average exercise price (in dollars per share) | $ / shares $ 0
Exercised (in shares) | shares (356,289)
Exercised, weighted average exercise price (in dollars per share) | $ / shares $ 7.20
Forfeited (in shares) | shares 0
Forfeited, weighted average exercise price (in dollars per share) | $ / shares $ 0
Canceled or expired (in shares) | shares (26,711)
Canceled or expired, weighted average exercise price (in dollars per share) | $ / shares $ 8.13
Outstanding (in shares) | shares 422,701
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 12.40