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Capital Adequacy and Regulatory and Supervisory Matters (Tables)
6 Months Ended
Jun. 30, 2012
Capital Adequacy and Regulatory and Supervisory Matters [Abstract]  
Capital Ratios of Company's Subsidiary Bank
                                 
    June 30, 2012     December 31, 2011  
    Amount     Ratio     Amount     Ratio  

Total capital (to risk-weighted assets)

  $ 12,602       5.6 %    $ 13,756       6.1 % 

Tier I capital (to risk-weighted assets)

    9,767       4.4 %      10,860       4.8 % 

Tier I capital (to average assets)

    9,767       2.9 %      10,860       3.3 %