COMPREHENSIVE INCOME (LOSS) (Changes in Accumulated Other Comprehensive Income (Loss) by Category) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011	Sep. 30, 2010
Changes in Accumulated Other Comprehensive Income (Loss) by Category [Roll Forward]
Investment Securities Available-for-Sale balance, beginning of the year	$ (11,421)		$ (9,761)
Cash Flow Hedges balance, beginning of the year	(222)		(171)
Foreign Currency Translation Adjustments, beginning of the year	0		(368)
SERP Pension Liability balance, beginning of the year	(2,970)		(2,507)
Total balance, beginning of the year	(14,613)		(12,807)
Current period changes for investment securities available- for- sale	1,408		(1,660)	3,030
Current period changes for cash flow hedges	200		(51)
Current period changes for foreign currency translation adjustments	0		368	(384)
Current period changes for SERP pension liability	(75)		(463)	(110)
Current period changes, total	1,533		(1,806)
Investment Securities Available-for-Sale balance, end of the year	(10,013)		(11,421)	(9,761)
Cash Flow Hedges balance, end of the year	(22)		(222)	(171)
Foreign Currency Translation Adjustments, end of the year	0		0	(368)
SERP Pension Liability balance, end of the year	(3,045)	[1]	(2,970)	(2,507)
Total balance, end of the year	(13,080)		(14,613)	(12,807)
Tax portion of investment securities available for sale in accumulated other comprehensive income	(6,263)		(7,147)	(6,071)
Tax portion of cash flow hedges in accumulated other comprehensive income	(15)		(202)	(146)
Tax portion of foreign currency translation adjustments in accumulated other comprehensive income	0		0	0
Tax portion of SERP pension liability in accumulated other comprehensive income	$ (2,328)		$ (2,271)	$ (1,966)

[1] The estimated net loss for the plan that is expected to be amortized from accumulated other comprehensive loss into net periodic pension benefit cost over the next fiscal year is $399,000.