XML 39 R39.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Note 9 - Income Per Share (Details Textual) - shares
3 Months Ended 9 Months Ended
Nov. 02, 2019
Nov. 03, 2018
Nov. 02, 2019
Nov. 03, 2018
Share-based Payment Arrangement, Option [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 923,715 594,183 928,236 563,611