v2.4.0.6
LONG-TERM INVESTMENTS (Details 3) (USD $)
3 Months Ended
Dec. 31, 2010
Dec. 31, 2011
Sep. 30, 2011
Zhenai
Dec. 31, 2011
Long-term marketable equity securities
Long-term investments        
Percentage of ownership interest acquired     20.00%  
Other-than-temporary impairment charge to write-down investment $ 7,800,000      
Long-term marketable equity securities        
Cost basis       53,100,000
Gross unrealized gains 3,582,000 697,000   29,800,000
Gross Unrealized Losses $ (246,000) $ (37,000)   $ (8,200,000)