Employee Benefit Plans (Schedule Of Net Periodic Benefit Costs) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Pension Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Interest cost $ 364 $ 375
Expected return on plan assets (396) (377)
Amortization of net gain 84 48
Net periodic benefit cost 52 46
Other Postretirement Benefit Plans Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 13 15
Interest cost 8 13
Amortization of net gain (12) (3)
Net periodic benefit cost $ 9 $ 25