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Condensed Consolidated Statements of Comprehensvie Income (Loss) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
NET INCOME (LOSS) $ 18,314,195 $ (4,227,352) $ 17,127,308 $ (17,472,878)
Other comprehensive income (loss):        
Foreign currency translation 3,989 (14,693) 5,230 (23,511)
COMPREHENSIVE INCOME (LOSS) $ 18,318,184 $ (4,242,045) $ 17,132,538 $ (17,496,389)