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7. Disclosures About Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2014
Disclosures About Fair Value Of Financial Instruments Tables  
Carrying Value and Estimated Fair Value for Financial Instruments
    March 31, 2014     December 31, 2013  
    Estimated     Carrying     Estimated     Carrying  
    Fair Value     Value     Fair Value     Value  
                         
Financial Assets                        
Loans   $ 519,034     $ 487,327     $ 512,250     $ 478,453  
                                 
Financial Liabilities                                
Time deposits   $ 210,592     $ 193,503       197,729       196,004  
Long-term debt   $ 12,609     $ 11,500       12,613       11,500