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Commitments and Contingencies - Additional Information (Detail) (USD $)
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12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
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Dec. 31, 2012
|
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| Commitments And Contingencies Disclosure [Abstract] | ||
| Operating lease agreements with commitments through 2014 | $ 616,982 | |
| Rent expense | $ 827,479 | $ 809,332 |