Employee Benefit Plans (Schedule Of Net Periodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 375	$ 340	$ 750	$ 680
Expected return on plan assets	(377)	(365)	(754)	(730)
Amortization of net (gain) loss	49	108	97	216
Net periodic benefit cost	47	83	93	166
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	16	17	31	34
Interest cost	12	11	25	23
Amortization of net (gain) loss	(3)		(6)
Net periodic benefit cost	$ 25	$ 28	$ 50	$ 57