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Note 5 - Loans (Detail) - Non-Accrual Loans (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Non-accrual portfolio loans $ 103,902 $ 201,197 $ 242,319
Non-accrual loans held-for-sale   760 2,873
Total non-accrual loans 103,902 201,957 245,192
Contractual interest due 9,305 5,330  
Nonaccrual Loans [Member]
     
Contractual interest due 6,621 13,049 17,304
Interest recognized 1,006 71 4,853
Net interest foregone $ 5,615 $ 12,978 $ 12,451