Private Label Consumer Credit Card Program (Details)	12 Months Ended
Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Private Label Consumer Credit Card Program
Percentage of customer purchases paid using private label consumer credit card	19.00%	19.00%	21.00%

The percentage of customer purchases paid using private label consumer credit card.

No definition available.

Name:	imbi_PercentageOfCustomerPurchasesPaidUsingPrivateLabelConsumerCreditCard
Namespace Prefix:	imbi_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration