Annual report pursuant to Section 13 and 15(d)

Summary of significant accounting policies (Details)

v3.21.1
Summary of significant accounting policies (Details)
 3 Months Ended 12 Months Ended
Jan. 30, 2021
Oct. 31, 2020
Aug. 01, 2020
May 02, 2020
Feb. 01, 2020
Nov. 02, 2019
Aug. 03, 2019
May 04, 2019
Jan. 30, 2021
Feb. 01, 2020
Feb. 02, 2019
Fiscal period 91 days 91 days 91 days 91 days 91 days 91 days 91 days 91 days 364 days 364 days 364 days
Minimum                      
Fiscal period                 364 days    
Maximum                      
Fiscal period                 371 days