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INTANGIBLE ASSETS, NET (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Amortization expense for amortizing intangible assets $ 733,794 $ 857,695 $ 1,456,810 $ 1,710,688
2013 1,114,262   1,114,262  
2014 556,779   556,779  
2015 556,726   556,726  
2016 539,399   539,399  
2017 $ 526,997   $ 526,997