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PENSION PLAN (Schedule of Pension Plan Weighted-Average Asset Allocations) (Details)	Sep. 30, 2021	Sep. 30, 2020
Weighted average asset allocation (percentage)	100.00%	100.00%
Equity Securities [Member]
Weighted average asset allocation (percentage)	68.00%	64.00%
Debt Securities [Member]
Weighted average asset allocation (percentage)	31.00%	35.00%
Money Market Funds [Member]
Weighted average asset allocation (percentage)	1.00%	1.00%

X

- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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