The element represents the annual consulting fees paid during the period.

No definition available.

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

- Definition

The element represents the consulting fees paid during the period.

+ References

No definition available.

+ Details

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

- Definition

This element represents that, the amount of legacy asset fees paid during the reporting period.

+ References

No definition available.

+ Details

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

- Definition

Mortgage Loans on Real Estate, New Mortgage Loans, Discount

+ References

No definition available.

+ Details

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- Definition

Mortgage Loans on Real Estate, New Mortgage Loans, Expenses

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Mortgage Loans on Real Estate, New Mortgage Loans, Number of Extensions Available

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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Period Type:	duration

- Definition

Mortgage Loans on Real Estate, Number of Loans Acquired

+ References

No definition available.

+ Details

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Namespace Prefix:	ifcn_
Data Type:	xbrli:integerItemType
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Period Type:	duration

- Definition

Origination Fee

+ References

No definition available.

+ Details

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

- Definition

Percentage of legacy assets performance fee.

+ References

No definition available.

+ Details

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

- Definition

Percentage of Carrying Value Used to Calculate Legacy Assets Performance Fee

+ References

No definition available.

+ Details

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Namespace Prefix:	ifcn_
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Period Type:	duration

- Definition

Proceeds from Financing of Investment in Joint Venture

+ References

No definition available.

+ Details

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

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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Balance Type:	na
Period Type:	instant

- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
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Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ References

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Period Type:	instant

- Definition

Amount of subscription received from investors who have been allocated nonredeemable preferred stock or preferred stock redeemable solely at the option of the issuer.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 225
-Section S99
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Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

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RELATED PARTY TRANSACTIONS AND COMMITMENTS - Contractual Agreements (Details)		3 Months Ended
	Jul. 24, 2014 USD ($)	Mar. 31, 2018 USD ($) Loan $ / shares shares	Mar. 31, 2017 USD ($)	Feb. 09, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares
Related Party Transaction [Line Items]
Syndicated financing of investment		$ 3,434,000	$ (8,000)
Professional fees		$ 875,000	929,000
Redeemable Convertible Preferred Stock, shares issued \| shares		10,552,941			8,200,000
Redeemable Convertible Preferred Stock, par value (in dollars per share) \| $ / shares		$ 0.01			$ 0.01
Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Percentage of carrying value used to calculate legacy assets performance fee		110.00%
Legacy fees		$ 0	600,000
JCP Realty Advisors, LLC [Member]
Related Party Transaction [Line Items]
Percentage of carrying value used to calculate legacy assets performance fee	110.00%
Legacy fees		0	1,000,000
Annual consulting fees	$ 500,000
Origination Fee	1.25%
Percentage of legacy assets performance fee	5.50%
Consulting fees		100,000	$ 200,000
Unconsolidated Partnerships [Member]
Related Party Transaction [Line Items]
Notes receivable		$ 3,400,000			$ 1,900,000
JPMorgan Chase Funding Inc. [Member]
Related Party Transaction [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights \| shares				600,000
Mortgage Receivable [Member]
Related Party Transaction [Line Items]
Number of loans acquired \| Loan		1
Discount on loans acquired		$ 13,100,000
Expenses of acquired loans		$ 100,000
Number of extensions available for loans acquired		1
Annual interest rate of loans acquired		8.50%
Series B-3 Cumulative Convertible Preferred Stock [Member] \| JPMorgan Chase Funding Inc. [Member]
Related Party Transaction [Line Items]
Redeemable Convertible Preferred Stock, shares issued \| shares				2,352,941
Series B Preferred Stock [Member] \| JPMorgan Chase Funding Inc. [Member]
Related Party Transaction [Line Items]
Sale of Stock, Price Per Share \| $ / shares				$ 3.40
Preferred Stock, Value, Subscriptions				$ 8,000,000