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COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS (Tables)
3 Months Ended
Mar. 31, 2013
COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS [Abstract]  
Components of net periodic benefit costs
 
Three Months Ended
 
 
March 31,
 
 
2013
 
 
2012
 
Qualified Pension
 
 
 
 
 
 
Service cost, benefits earned during the period
 
$
349,404
 
 
$
323,351
 
Interest cost on projected benefit obligation
 
 
408,621
 
 
 
406,110
 
Expected return on plan assets
 
 
(727,172
)
 
 
(663,493
)
Amortization of unrecognized transition obligation
 
 
-
 
 
 
-
 
Amortization of unrecognized prior service cost
 
 
3,464
 
 
 
3,464
 
Amortization of unrecognized net loss
 
 
379,990
 
 
 
330,568
 
  Net periodic pension expense
 
$
414,307
 
 
$
400,000
 
 
 
 
 
 
 
 
 
Supplemental Pension
 
 
 
 
 
 
 
 
Service cost, benefits earned during the period
 
$
9,618
 
 
$
8,692
 
Interest cost on projected benefit obligation
 
 
11,513
 
 
 
12,773
 
Expected return on plan assets
 
 
-
 
 
 
-
 
Amortization of unrecognized prior service cost
 
 
-
 
 
 
-
 
Amortization of unrecognized net loss
 
 
8,244
 
 
 
4,980
 
  Net periodic supplemental pension expense
 
$
29,375
 
 
$
26,445
 
 
 
 
 
 
 
 
 
Postretirement, Medical and Life
 
 
 
 
 
 
 
 
Service cost, benefits earned during the period
 
$
11,002
 
 
$
8,750
 
Interest cost on projected benefit obligation
 
 
14,573
 
 
 
18,000
 
Expected return on plan assets
 
 
-
 
 
 
-
 
Amortization of unrecognized prior service benefit
 
 
(24,250
)
 
 
(24,250
)
Amortization of unrecognized net loss
 
 
1,175
 
 
 
-
 
  Net periodic postretirement, medical and life expense
 
$
2,500
 
 
$
2,500