Note 3 - Loans (Detail) - Financing Receivables on Nonaccrual Status (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Nonaccrual loans at period end	$ 16,118	$ 22,969
Commercial and Industrial [Member]
Nonaccrual loans at period end	233	1,771
Commercial Real Estate Other Receivable [Member]
Nonaccrual loans at period end	10,237	15,336
First Lien Residential Mortgage Loans [Member]
Nonaccrual loans at period end	4,995	5,374
Junior Lein Residential Mortgage Loans [Member]
Nonaccrual loans at period end	381	278
Consumer Loans [Member]
Nonaccrual loans at period end	$ 272	$ 210