SHARE-BASED COMPENSATION (Details)	1 Months Ended			0 Months Ended
Sep. 30, 2000 2000 Option Plan	Jul. 31, 2006 2000 Option Plan	Feb. 29, 2004 2000 Option Plan	Apr. 30, 2009 2009 Option Plan	Dec. 31, 2011 2009 Option Plan
SHARE-BASED COMPENSATION
Common shares reserved for issuance under share option plan	4,010,666	7,530,578	5,530,578	5,000,000	10,000,000
Period from the date of grant to exercise the share options	6 years			6 years

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant