Note 5 - Distressed Residential Mortgage Loans (Details) - Distressed Residential Mortgage Loans Activity (Distressed Residential Mortgage Loans [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Distressed Residential Mortgage Loans [Member]
Note 5 - Distressed Residential Mortgage Loans (Details) - Distressed Residential Mortgage Loans Activity [Line Items]
Balance at beginning of period	$ 171,112
Disposals	(73,906)
Accretion	(14,400)
Balance at end of period	264,130
Additions	$ 181,324