Deposits (Tables)
 12 Months Ended
Dec. 31, 2015
Deposits [Abstract]  
Schedule of major classifications of interest-bearing deposits
 
  2015  2014  2013 
          
NOW and SuperNOW $27,502,016  $26,990,274  $27,991,553 
Money Market  19,079,536   20,465,436   19,219,579 
Savings  78,107,913   74,973,038   71,278,801 
Certificates of Deposit, $100,000 or more  34,239,331   36,118,031   28,916,597 
Other time deposits  82,677,870   91,767,589   89,649,301 
             
  $241,606,666  $250,314,368  $237,055,831 
Schedule of interest expense on deposit
 
  2015  2014  2013 
          
NOW and SuperNOW $9,711  $11,608  $11,300 
Money Market  12,763   9,965   10,618 
Savings  39,936   37,537   55,591 
Certificates of Deposit, $100,000 or more  522,637   523,472   373,880 
Other time deposits  1,165,027   1,310,732   1,562,938 
             
  $1,750,074  $1,893,314  $2,014,327 
Schedule of scheduled maturities of time deposits
 
  2015 
    
2016 $44,839,000 
2017  11,863,000 
2018  17,966,000 
2019  25,562,000 
2020  15,303,000 
2021 and thereafter  1,384,000 
     
  $116,917,000