XML 62 R46.htm IDEA: XBRL DOCUMENT v3.22.1

The Company (Details)	12 Months Ended
The Company (Details)	Jan. 29, 2022 segment
The Company
Number of reporting segment	3

(1) General [Abstract]

No definition available.

Name:	imbi_GeneralAbstract
Namespace Prefix:	imbi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

No definition available.

Name:	us-gaap_NumberOfReportingUnits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration