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Organization and Nature of Operations (Details) (USD $) In Billions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Securities [Line Items]
Assets under Management	$ 5.7
Collateralized Debt Obligations [Member]
Securities [Line Items]
Assets under Management	$ 5.4
Assets under management which are collateralized debt obligations percentage	94.00%

X

- Definition

Assets under management which are collateralized debt obligations percentage.

+ References

No definition available.

+ Details

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

X

- Details

Name:	ifmi_SecuritiesLineItems
Namespace Prefix:	ifmi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The carrying amount of assets an investment adviser manages on behalf of investors.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant