SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, AVAILABLE FOR SALE SECURITIES (Details) (USD $)	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2011
Available-for-sale securities, gross unrealized gain (loss)	$ 9,100,000		$ 8,300,000
Total unrealized gains, net of tax	5,399,000		4,921,000
Proceeds from sale of available-for-sale securities	482,000		0		0
Pre-tax gain realized	380,000
Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	11,716,000	[1]	11,009,000	[1]
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	11,716,000	[1]	11,009,000	[1]
Available-for-sale securities, equity securities, noncurrent			$ 11,009,000	[1]

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