RETIREMENT PLANS (Details) (USD $)	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Pension Plan
Retirement plans
Service cost	$ 68,000	$ 75,000
Interest cost	75,000	81,000
Expected return on plan assets	(97,000)	(82,000)
Amortization of prior service cost (credit)	1,000	1,000
Amortization of net actuarial loss (gain)	26,000	29,000
Net periodic benefit cost	73,000	104,000
Contribution by the entity to the Pension Plan	250,000
SERP
Retirement plans
Service cost	13,000	13,000
Interest cost	14,000	15,000
Amortization of prior service cost (credit)	(1,000)
Amortization of net actuarial loss (gain)	5,000	4,000
Net periodic benefit cost	31,000	32,000
Postretirement Medical
Retirement plans
Service cost	4,000	3,000
Interest cost	12,000	12,000
Amortization of prior service cost (credit)	34,000	34,000
Amortization of net actuarial loss (gain)		(3,000)
Net periodic benefit cost	$ 50,000	$ 46,000