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Note 7 - Loans and Allowance for Loan Losses (Detail) - Performance Of The Loan Portfolio And Its Impact On The Allowance For Loan Losses (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Loans $ 1,018,311 $ 1,072,108
Consumer Secured [Member] | Performing Financing Receivable [Member]
   
Loans 12,133 14,134
Consumer Secured [Member] | Nonperforming Financing Receivable [Member]
   
Loans 21 80
Consumer Secured [Member] | Total [Member]
   
Loans 12,154 14,214
Consumer Secured [Member]
   
Loans 12,154 14,214
Consumer Unsecured [Member] | Performing Financing Receivable [Member]
   
Loans 6,530 7,138
Consumer Unsecured [Member] | Nonperforming Financing Receivable [Member]
   
Loans 1 13
Consumer Unsecured [Member] | Total [Member]
   
Loans 6,531 7,151
Consumer Unsecured [Member]
   
Loans $ 6,531 $ 7,151