MARKETABLE SECURITIES - Summary of marketable securities (Details) (USD $)	3 Months Ended	12 Months Ended
Dec. 31, 2012	Sep. 30, 2012
Trading:
Cost	$ 1,254,088
Unrealized gains	58,970
Unrealized losses	(1,500)
Total trading at fair value	1,311,558
Available-for-sale:
Cost		444,349
Unrealized gains		4,764
Unrealized losses		(28,508)
Total available-for-sale at fair value		$ 420,605

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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