BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Defined Benefit Plan Disclosure [Line Items]
Interest costs	$ 325	$ 366
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest costs	325	366	430
Less: expected return on plan assets	(70)	(66)	(59)
Plus: Amortization of unrecognized loss	378	298	263
Net cost	$ 633	$ 598	$ 634