XML 43 R87.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Derivative Financial Instruments-Balance Sheet Information (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative Financial Instruments Not Designated as Hedging Instruments, Unrealized Gain / (Loss) | $ 22 | $ (16)
Investments-trading [Member] | TBAs [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative Financial Instruments Not Designated as Hedging Instruments, Unrealized Gain / (Loss) | 35 |
Trading securities sold not yet purchased [Member] | TBAs [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative Financial Instruments Not Designated as Hedging Instruments, Unrealized Gain / (Loss) | $ (13) | $ (16)

X
- Definition Derivative instrument not designated as hedging instruments gain loss net. + References No definition available. + Details
Name: | ifmi_DerivativeInstrumentNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix: | ifmi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration