OTHER INCOME AND (INCOME DEDUCTIONS) - NET (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ 391	$ 337
Net investment (loss) gain	(61)	1,041
Other income	68	0
Other income deductions	691	561
Other Income and (Income Deductions) - Net	$ 1,089	$ 1,939