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Note 7 - Loans And Related Allowance For Loan Losses (Detail) - Major Classifications of Net Loans (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Financing Receivable Gross $ 407,054 $ 408,433
Less allowance for loan losses 7,732 7,779
Net loans 399,322 400,654
Commercial and Industrial [Member]
   
Financing Receivable Gross 55,401 62,188
Real Estate Construction [Member]
   
Financing Receivable Gross 22,817 22,522
Residential Real Estate Mortgage [Member]
   
Financing Receivable Gross 199,063 203,872
Commercial Real Estate Mortgage [Member]
   
Financing Receivable Gross 125,799 115,734
Consumer Installment [Member]
   
Financing Receivable Gross $ 3,974 $ 4,117