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Schedule of Accrued Liabilities (Detail) (USD $) | Mar. 31, 2014 | Dec. 31, 2013
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Schedule of Accrued Liabilities [Line Items] |  |
Employee compensation | $ 2,228,965 | $ 3,166,086
Taxes | 655,703 | 2,324,711
Royalty and license fees | 560,501 | 1,897,473
Contingent consideration (current portion) | 1,313,145 | 1,195,248
Unearned revenue |  | 3,341
Professional fees | 402,820 | 385,478
VAT liabilities |  | 7,591
Other accrued expenses | 477,801 | 599,784
Total | $ 5,638,935 | $ 9,579,712

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