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Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
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Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 22,154,176 | $ 21,168,596
Product and License Rights |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | 20,543,262 | 18,011,362
Accumulated amortization | (4,988,333) | (3,541,305)
Intangible assets, net | 15,554,929 | 14,470,057
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | 8,844,994 | 8,236,719
Accumulated amortization | (2,298,442) | (1,551,430)
Intangible assets, net | 6,546,552 | 6,685,289
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | 61,715 | 22,270
Accumulated amortization | (9,020) | (9,020)
Intangible assets, net | $ 52,695 | $ 13,250

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