Note 7 - Use of Special Purpose Entities and Variable Interest Entities (Details) - Financing VIEs’ Securitized Debt by Contractual Maturity (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Note 7 - Use of Special Purpose Entities and Variable Interest Entities (Details) - Financing VIEs’ Securitized Debt by Contractual Maturity [Line Items]    
Carrying value $ 304,964 $ 117,591
Financing VIE [Member]
   
Note 7 - Use of Special Purpose Entities and Variable Interest Entities (Details) - Financing VIEs’ Securitized Debt by Contractual Maturity [Line Items]    
Within 24 months 90,700 0
Over 24 months to 36 months 187,024 90,700
Over 36 months 34,507 35,000
Total 312,231 125,700
Discount (7,267) (8,109)
Carrying value $ 304,964 $ 117,591