ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Changes in Accumulated Other Comprehensive Income (Loss) by Category) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2012
Changes in Accumulated Other Comprehensive Income (Loss) by Category [Roll Forward]
Investment Securities Available-for-Sale balance, beginning of the year			$ (10,013)
Cash Flow Hedges balance, beginning of the year			(22)
SERP Pension Liability balance, beginning of the year			(3,045)
Total balance, beginning of the year			(13,080)
Current period changes for investment securities available- for- sale	2,279	(404)	1,873	581
Current period changes for cash flow hedges			12
Current period changes for SERP pension liability			151
Current period changes, total			2,036
Investment Securities Available-for-Sale balance, end of the year	(8,140)		(8,140)
Cash Flow Hedges balance, end of the year	(10)		(10)
SERP Pension Liability balance, end of the year	(2,894)		(2,894)
Total balance, end of the year	(11,044)		(11,044)
Tax portion of investment securities available for sale in accumulated other comprehensive income	(6,447)		(6,447)		(6,263)
Tax portion of cash flow hedges in accumulated other comprehensive income	(2)		(2)		(15)
Tax portion of SERP pension liability in accumulated other comprehensive income	$ (2,279)		$ (2,279)		$ (2,328)