Note 5 - Distressed Residential Mortgage Loans (Details) - Distressed Residential Mortgage Loans Activity (Distressed Residential Mortgage Loans [Member], USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Distressed Residential Mortgage Loans [Member]
    
Note 5 - Distressed Residential Mortgage Loans (Details) - Distressed Residential Mortgage Loans Activity [Line Items]    
Balance at beginning of period $ 91,252 [1]  
Additions 102,952 91,737
Disposals (11,223) (53)
Accretion (11,741) (432)
Allowance for loan losses (128)  
Balance at end of period (1) $ 171,112 [1] $ 91,252 [1]
[1] Accretable yield is the excess of the distressed residential mortgage loans' cash flows expected to be collected over the purchase price. The cash flows expected to be collected represents the Company's estimate, of the amount and timing of undiscounted principal and interest cash flows.