Earnings / (Loss) Per Common Share (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Earnings / (Loss) Per Common Share (Textual) [Abstract]
Restricted units of IFMI shares, antidilutive	21,879	37,288	17,412	25,852
Earnings / (Loss) Per Common Share (Additional Textual) [Abstract]
Restricted operating LLC membership units	0	0	11,628	3,613
Restricted Stock [Member]
Earnings / (Loss) Per Common Share (Textual) [Abstract]
Restricted units of IFMI shares, antidilutive	0		2,554