Commencement period for interest on vendor loan.

No definition available.

Name:	imbi_BusinessAcquisitionCommencementPeriodForInterestOnVendorLoan
Namespace Prefix:	imbi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of vendor loan installment payments per purchase agreement.

+ References

No definition available.

+ Details

Name:	imbi_BusinessAcquisitionNumberOfVendorLoanInstallmentPayments
Namespace Prefix:	imbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of vendor loan installment payment due on the first and second anniversaries of the issuance date.

+ References

No definition available.

+ Details

Name:	imbi_BusinessAcquisitionVendorLoanInstallmentAmount
Namespace Prefix:	imbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest rate on vendor loan installment payments.

+ References

No definition available.

+ Details

Name:	imbi_BusinessAcquisitionVendorLoanInterestRate
Namespace Prefix:	imbi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of liability recognized arising from contingent consideration in a business combination payable in year one.

+ References

No definition available.

+ Details

Name:	imbi_BusinessCombinationContingentConsiderationLiabilityDueInYearOne
Namespace Prefix:	imbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of liability recognized arising from contingent consideration in a business combination payable in year two.

+ References

No definition available.

+ Details

Name:	imbi_BusinessCombinationContingentConsiderationLiabilityDueInYearTwo
Namespace Prefix:	imbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period associated with excess working capital.

+ References

No definition available.

+ Details

Name:	imbi_PaymentsToAcquireBusinessExcessWorkingCapital
Namespace Prefix:	imbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of business during the period for cash on hand.

+ References

No definition available.

+ Details

Name:	imbi_PaymentsToAcquireBusinessesCashOnHand
Namespace Prefix:	imbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
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+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Publisher FASB
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
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-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

+ Details

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Subsequent Events (Details) $ in Thousands, € in Millions			9 Months Ended
Subsequent Events (Details) $ in Thousands, € in Millions	Nov. 05, 2021 USD ($) item	Nov. 05, 2021 EUR (€) item	Oct. 30, 2021 USD ($)	Nov. 05, 2021 EUR (€)
Subsequent Event [Line Items]
Cash consideration \| $			$ 23,500
Subsequent Event \| 1-2-3.tv Group [Member]
Subsequent Event [Line Items]
Purchase price	$ 93,000	€ 80.0
Payment for cash-on-hand	3,800	3.3
Payment for excess working capital	3,400	2.9
Cash consideration	72,100	62.0
Liabilities incurred	$ 20,900	€ 18.0
Number of vendor loan installment payments \| item	2	2
Amount of vendor loan installment payment	$ 10,500			€ 9.0
Interest rate (as a percent)	8.50%			8.50%
Commencement period for interest	6 months	6 months
Earn out payment	$ 16,500			€ 14.0
Earn out payment in year 2023				14.0
Earn out payment in year 2024				14.0
Subsequent Event \| 1-2-3.tv Group [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Earn out payment	$ 49,600			€ 42.0