Note 17 - Share-Based Compensation - Stock Option Activity (Details)	12 Months Ended
	Feb. 01, 2020 $ / shares shares
Outstanding, total number of stock options (in shares) | shares	42,667
Outstanding, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 18.01
Exercised, total number of stock options (in shares) | shares	(5,000)
Exercised, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 9.63
Forfeited, total number of stock options (in shares) | shares	0
Forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 0
Canceled or expired, total number of stock options (in shares) | shares	(2,000)
Canceled or expired, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 8.85
Outstanding, total number of stock options (in shares) | shares	35,667
Outstanding, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 19.70
Exercisable, total number of stock options (in shares) | shares	27,333
Exercisable, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 16.81