Note 5 - Regulatory Capital (Tables)
6 Months Ended
Jun. 30, 2015
Disclosure Text Block [Abstract]  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]
    Actual   Minimum for Adequacy
Purposes
  Minimum to be Well
Capitalized Under
Prompt Corrective
Action Provisions
    Amount   Ratio   Amount   Ratio   Amount   Ratio
    (Dollars In Thousands)
June 30, 2015                                                
Core/Leverage Capital   $ 49,650       14.88 %   $ 13,348       4.00 %   $ 16,685       5.00 %
CET1 Capital     49,650       23.30 %     9,588       4.50 %     13,849       6.50 %
Tier 1 Risk-Based Capital     49,650       23.30 %     12,783       6.00 %     17,045       8.00 %
Total Risk-Based Capital     52,142       24.47 %     17,045       8.00 %     21,306       10.00 %
                                                 
December 31, 2014                                                
Core/Leverage Capital   $ 48,054       14.46 %   $ 9,970       3.00 %   $ 16,617       5.00 %
Tier 1 Risk-Based Capital     48,054       23.79 %     8,081       4.00 %     12,121       6.00 %
Total Risk-Based Capital     50,422       24.96 %     16,162       8.00 %     20,202       10.00 %
Reconciliation of Bank's Capital [Table Text Block]
  June 30, 2015   December 31, 2014
  (In Thousands)
Capital Under GAAP   $ 49,733     $ 48,150  
Unrealized Gains on Available-for-Sale Securities     (83 )     (96 )
Tier 1 Capital and CET1 Capital     49,650       48,054  
                 
Allowance for Loan Losses     2,492       2,368  
Total Risk-Based Capital   $ 52,142     $ 50,422