Capital Transaction, Percent of Gross Proceeds, Expense Reimbursement Broker-Dealer

No definition available.

Name:	ifcn_CapitalTransactionPercentofGrossProceedsExpenseReimbursementBrokerDealer
Namespace Prefix:	ifcn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Capital Transaction, Percent of Gross Proceeds

+ References

No definition available.

+ Details

Name:	ifcn_CapitalTransactionPercentofGrossProceedsSellingCommissions
Namespace Prefix:	ifcn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

[Line Items] for Commitments and Contingencies [Table]

+ References

No definition available.

+ Details

Name:	ifcn_CommitmentsandContingenciesLineItems
Namespace Prefix:	ifcn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Repayment Guaranty

+ References

No definition available.

+ Details

Name:	ifcn_DebtInstrumentRepaymentGuaranty
Namespace Prefix:	ifcn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Fund Expense Reimbursements

+ References

No definition available.

+ Details

Name:	ifcn_FundExpenseReimbursements
Namespace Prefix:	ifcn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

+ Details

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

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of distribution made to individual in accordance with deferred compensation arrangement.

+ References

No definition available.

+ Details

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

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585

+ Details

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

- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=ifcn_LAubergeFundManagerLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EquityInterestIssuedOrIssuableByTypeAxis=ifcn_PreferredInterestsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_LitigationCaseAxis=ifcn_RNMAIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_LitigationCaseAxis=ifcn_ManiatisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_NM
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_TX
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_HotelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ifcn_MacArthurLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=ifcn_MacArthurPlaceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS AND CONTINGENCIES (Details) $ in Millions		1 Months Ended	3 Months Ended		29 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Oct. 02, 2017	Oct. 31, 2017	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2017 a
Commitments and Contingencies [Line Items]
Recovery of credit losses			$ (1.8)	$ 0.0
Employer match percentage			4.00%
Employer contribution in period			$ 0.1	$ 0.1
Deferred compensation amounts			0.1		$ 0.1
Fund expense reimbursements			(0.4)		(2.4)
CEO
Commitments and Contingencies [Line Items]
Termination agreement distribution paid			$ 0.2
L’Auberge Fund Manager, LLC \| Preferred Interests
Commitments and Contingencies [Line Items]
Selling commissions as % of gross proceeds			6.00%
Nonaccountable expense reimbursements broker-dealers as percent of gross proceeds			1.00%
RNMA I \| Pending Litigation
Commitments and Contingencies [Line Items]
Settlement and related costs			$ 1.3
Maniatis \| Pending Litigation \| New Mexico
Commitments and Contingencies [Line Items]
Area of land (in acres) \| a						7,000
Maniatis \| Pending Litigation \| Texas
Commitments and Contingencies [Line Items]
Area of land (in acres) \| a						111
Hotel
Commitments and Contingencies [Line Items]
Fund expense reimbursements			$ (0.1)		$ (12.9)
MacArthur Loan \| MacArthur Place \| Hotel
Commitments and Contingencies [Line Items]
Repayment guaranty	50.00%	50.00%	50.00%