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Note 9 - Other Borrowings and Subordinated Debentures (Detail) (USD $)
1 Months Ended
Sep. 28, 2012
Sep. 30, 2012
Advances by Federal Home Loan Bank   $ 88,900,000
Advances from Federal Home Loan Bank Available   461,800,000
Payments for Repurchase of Trust Preferred Securities 10,300,000  
Trust Preferred Securities Subject to Mandatory Redemption [Member]
   
Debt Instrument, Interest Rate, Stated Percentage 8.25%  
Federal Home Loan Bank Advances [Member]
   
Federah Home Loan Bank Advances Collateral   $ 591,000,000