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11. Stock Option Plan (Tables)
6 Months Ended
Jun. 30, 2014
Shares Held in Employee Stock Ownership Plan [Abstract]  
Summary Of Activity In Stock Option Plans
  For the Six Months Ended June 30,
  2014   2013
      Weighted-Average       Weighted-Average
  Options   Exercise Price   Options   Exercise Price
 Outstanding, January 1 185,410   $ 19.59   249,700   $ 18.98
     Granted -     -   -     -
     Exercised (3,200 )   4.63   (12,000 )   5.09
     Forfeited -     -   (1,750 )   19.69
     Expired (2,500 )   17.43   (39,700 )   23.41
 Outstanding, June 30 179,710   $ 19.88   196,250   $ 18.92
Other Information Regarding Options Outstanding And Exercisable
                             
    Options Outstanding   Options Exercisable
            Wted. Avg.   Aggregate           Aggregate
            Remaining   Intrinsic           Intrinsic
Range of   # of       Contractual   Value   # of       Value
exercise price   shares   WAEP   Life (yrs)   (in thousands)   shares   WAEP   (in thousands)
$ 2.54 - $6.00   13,550   $ 4.69   4.20   $ 81   11,550   $ 5.06   $ 64
  6.01 - 10.00   23,160     9.07   2.73     36   22,560     9.14     34
  10.01 - 17.50   -     -   -     -   -     0     -
  17.51 - 20.00   38,500     17.80   2.50     -   38,500     17.8     -
  20.01 - 25.93   104,500     25.04   2.24     -   104,500     25.04     -
                                       
      179,710     19.88       $ 117   177,110     20.12   $ 98