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Discontinued Operations The operating results of pharmaceutical manufacturing - China business (Details) (Pharmaceutical Manufacturing - China business [Member], USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Pharmaceutical Manufacturing - China business [Member]
    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Disposal Group, Including Discontinued Operation, Revenue $ 61,703,100 $ 63,393,600
Disposal Group, Including Discontinued Operation, Costs of Goods Sold (40,245,200) (47,186,800)
Disposal Group Including Discontinued Operation Research and Development (1,836,400) (2,904,100)
Disposal Group Including Discontinued Operation Selling General and Administrative (10,740,000) (11,068,200)
Disposal Group, Including Discontinued Operation, Operating Expense (1,045,200) (1,081,400)
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax (1,794,100) (392,800)
Disposal Group Including Discontinued Operation Assets Impairment (31,170,100) (19,432,700)
Loss on exit of segment 3,416,400.0 0
Disposal Group, Including Discontinued Operation, Operating Income (Loss) $ (28,544,300) $ (18,672,400)