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SHARE-BASED COMPENSATION Weighted-average assumptions (Details)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation [Abstract]
Expected volatility rate	75.00%	69.80%
Risk-free interest rate	1.10%	2.10%
Dividend yield	0.00%	0.00%
Expected term	6 years	6 years

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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