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Note 8 - Employee Benefit Plan (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note 8 - Employee Benefit Plan (Details) [Line Items]      
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 100.00%    
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 282 $ 279 $ 279
Accrued Expenses For Salary Continuation Plan 194 151 197
Target Allocation Percentage Of Assets Equity Securities 65.00%    
Target Allocation Percentage Of Assets Fixed Income Securities 35.00%    
Employee Stock Ownership Plan [Member]
      
Note 8 - Employee Benefit Plan (Details) [Line Items]      
Age Attained To Be Eligible For ESOP 21 years    
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP $ 275 $ 370 $ 420
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares (in Shares) 266,572    
Age Of Employees Required To Diversify Allocated ESOP Shares 55 years    
Years Of Plan Participation Required To Diversify Allocated ESOP Shares 10 years    
Percentage Of Allocated ESOP Shares That Can Be Diversified 50.00%