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Note 9 - Other Borrowings and Subordinated Debentures (Detail) - Debt (Parentheticals) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Interest rate on trust preferred securities (in Dollars) $ 30,930,000 $ 30,930,000
FHLB Advances [Member] | Minimum [Member]
   
Interest rate on FHLB advances 0.96% 0.96%
FHLB Advances [Member] | Maximum [Member]
   
Interest rate on FHLB advances 8.41% 8.41%
Trust Preferred Securities Due 12/30/2033 Fixed at 8.25% [Member]
   
Interest rate on trust preferred securities (in Dollars) $ 0.0825 $ 0.0825