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Goodwill (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Goodwill [Line Items]    
Goodwill, beginning balance   $ 1,664,457
Impairment of goodwill (1,704,770) (1,704,770)
Foreign currency translation   $ 40,313