OTHER INCOME AND (INCOME DEDUCTIONS) - NET (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
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ 142	$ 240	$ 390	$ 631
Net investment (loss) gain	(1,011)	832	(255)	771
Other income	263	(84)	921	674
Other Income and (Income Deductions) - Net	$ (606)	$ 988	$ 1,056	$ 2,076