Note 6 - Stock-based Compensation - Option Activity (Details) - $ / shares	6 Months Ended
	Aug. 28, 2022
Outstanding options (in shares)	648,300
Balance, weighted average exercise price (in dollars per share)	$ 12.96
Outstanding options, granted (in shares)	131,600
Granted, weighted average exercise price (in dollars per share)	$ 12.06
Stock options exercised (in shares)	(13,000)
Exercised, weighted average exercise price (in dollars per share)	$ 10.67
Outstanding options, terminated or expired (in shares)	(3,200)
Terminated or expired, weighted average exercise price (in dollars per share)	$ 13.13
Outstanding options (in shares)	763,700
Balance, weighted average exercise price (in dollars per share)	$ 12.84
Balance, weighted average remaining contractual term (Year)	5 years 9 months 3 days
Outstanding options, vested and exercisable (in shares)	457,175
Vested and exercisable, weighted average remaining contractual term (in dollars per share)	$ 12.75
Vested and exercisable, weighted average remaining contractual term (Year)	3 years 8 months 26 days