4. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details Narrative) (USD $)	3 Months Ended
Aug. 31, 2011
Fair Value Of Financial Instruments Details Narrative
Proceeds from long term investments	$ 1,400,000
Gain on sale of long term investments	$ 990,000

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

No definition available.

Name:	us-gaap_GainOnSaleOfInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration