Note 3 - Loans (Detail) - Financing Receivables on Nonaccrual Status (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Nonaccrual loans at period end	$ 17,878	$ 22,969
Commercial and Industrial [Member]
Nonaccrual loans at period end	1,452	1,771
Commercial Real Estate Other Receivable [Member]
Nonaccrual loans at period end	11,185	15,336
First Lien Residential Mortgage Loans [Member]
Nonaccrual loans at period end	4,674	5,374
Junior Lein Residential Mortgage Loans [Member]
Nonaccrual loans at period end	227	278
Consumer Loans [Member]
Nonaccrual loans at period end	$ 340	$ 210