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Components of Quarterly and Year-to-Date Net Periodic Benefit Costs
3 Months Ended
Mar. 31, 2012
Components of Quarterly and Year-to-Date Net Periodic Benefit Costs [Abstract]  
Components of Quarterly and Year-to-Date Net Periodic Benefit Costs
10.        Components of Quarterly and Year-to-Date Net Periodic Benefit Costs

   
Three Months Ended
March 31,
   
2012
     
2011
Qualified Pension
          
Service cost, benefits earned during the period
 
$
323,351
   
$
259,134
 
Interest cost on projected benefit obligation
   
406,110
     
392,956
 
Expected return on plan assets
   
(663,493
)
   
(585,673
)
Amortization of unrecognized transition obligation
   
-
     
-
 
Amortization of unrecognized prior service cost
   
3,464
     
7,470
 
Amortization of unrecognized net loss
   
330,568
     
169,113
 
  Net periodic pension expense
 
$
400,000
   
$
243,000
 
                 
                 
Supplemental Pension
               
Service cost, benefits earned during the period
 
$
8,692
   
$
7,656
 
Interest cost on projected benefit obligation
   
12,773
     
13,443
 
Expected return on plan assets
   
-
     
-
 
Amortization of unrecognized prior service cost
   
-
     
-
 
Amortization of unrecognized net loss
   
4,980
     
2,366
 
  Net periodic supplemental pension expense
 
$
26,445
   
$
23,465
 
                 
                 
Postretirement, Medical and Life
               
Service cost, benefits earned during the period
 
$
8,750
   
$
8,250
 
Interest cost on projected benefit obligation
   
18,000
     
18,750
 
Expected return on plan assets
   
-
     
-
 
Amortization of unrecognized prior service cost
   
(24,250
)
   
(24,250
)
Amortization of unrecognized net gain
   
-
     
-
 
  Net periodic postretirement, medical and life expense
 
$
2,500
   
$
2,750