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Note 4 - Loans (Detail) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral $ 226,915,000 $ 218,802,000
Included in Loans Held For Sale [Member]
   
Impaired Financing Receivable, Recorded Investment $ 1,082,000