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Pension and Other Post-retirement Benefit Plans (Tables)
9 Months Ended
Jun. 30, 2013
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 
   2013   2012   2013   2012 
                 
Service cost  $296,937   $246,496   $12,964   $10,791 
Interest cost   536,297    578,506    34,667    31,177 
Expected return on plan assets   (664,922)   (583,646)        
Amortization of prior service cost   10,671    12,314    2,660    (8,768)
Amortization of net (gain) loss   467,950    529,149    (11,657)   (18,355)
Net periodic benefit cost  $646,933   $782,819   $38,634   $14,845