Note 4 - Residential Mortgage Loans Held in Securitization Trusts (Net) and Real Estate Owned (Details) - Real Estate Owned (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Real Estate Owned [Abstract]
Balance at beginning of period	$ 1,108	$ 732
Write downs	(103)	(209)
Transfer from mortgage loans held in securitization trusts	241	621
Disposal	(577)	(374)
Balance at the end of period	$ 669	$ 770