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Pension and Other Post-retirement Benefit Plans (Tables)
9 Months Ended
Jun. 30, 2012
Pension And Other Post-Retirement Benefit Plans Tables  
Schedule of components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost:

 

   Nine Months Ended June 30, 
   Pension Benefits   Other Benefits 
   2012   2011   2012   2011 
                 
Service cost  $246,496   $249,794   $10,791   $10,364 
Interest cost   578,506    582,044    31,177    31,440 
Expected return on plan assets   (583,646)   (557,278)        
Amortization of prior service cost   12,314    12,604    (8,768)   (8,768)
Amortization of net (gain) loss   529,149    622,025    (18,355)   (27,054)
Net periodic benefit cost  $782,819   $909,189   $14,845   $5,982