SUMMARY OF SIGNIFICANT ACCOUTNING POLICIES, AVAILABLE FOR SALE SECURITIES (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Available-for-sale Securities, Gross Unrealized Gain (Loss)	$ 8,300,000	$ 7,700,000
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	4,921,000	4,530,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Available-for-sale Securities, Equity Securities, Noncurrent		$ 10,348,000	[1]

[1] Included in other noncurrent assets on the Consolidated Balance Sheets.