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Note 5 - Loans and Allowance for Credit Losses (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2011
Dec. 31, 2010
Financing Receivable, Modifications, Number of Contracts1 
Financing Receivable, Modifications, Recorded Investment$ 3,183 
Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt$ 77,431$ 137,954