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Goodwill and Intangible Assets (Details) - USD ($) | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2016 | Apr. 30, 2016 | Apr. 29, 2016 | Dec. 31, 2015 | Jun. 30, 2009 | Jan. 31, 2005
Non-Amortizing: |  |  |  |  |  |
Goodwill, Gross | $ 10,513,371 |  |  | $ 10,113,371 |  |
Goodwill, Net Book Value | 10,513,371 |  |  | 10,113,371 |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | 24,717,873 |  |  | 19,617,873 |  |
Intangible assets, Accumulated Amortization | (16,680,999) |  |  | (15,712,013) |  |
Intangible assets, Net Book Value | 8,036,874 |  |  | 3,905,860 |  |
Total goodwill and intangible assets, Gross | 35,231,244 |  |  | 29,731,244 |  |
Total goodwill and intangible assets, Net Book Value | 18,550,245 |  |  | 14,019,231 |  |
Inovio AS [Member] |  |  |  |  |  |
Non-Amortizing: |  |  |  |  |  |
Goodwill, Net Book Value |  |  |  |  |  | $ 3,900,000
VGX [Member] |  |  |  |  |  |
Non-Amortizing: |  |  |  |  |  |
Goodwill, Net Book Value |  |  |  |  | $ 6,200,000 |
Bioject [Member] |  |  |  |  |  |
Non-Amortizing: |  |  |  |  |  |
Goodwill, Net Book Value |  | $ 400,000 | $ 400,000 |  |  |
Patents [Member] |  |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | 5,802,528 |  |  | 5,802,528 |  |
Intangible assets, Accumulated Amortization | (5,599,335) |  |  | (5,516,122) |  |
Intangible assets, Net Book Value | $ 203,193 |  |  | 286,406 |  |
Patents [Member] | Minimum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 8 years |  |  |  |  |
Patents [Member] | Maximum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 17 years |  |  |  |  |
Licenses [Member] |  |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | $ 1,323,761 |  |  | 1,323,761 |  |
Intangible assets, Accumulated Amortization | (1,154,674) |  |  | (1,133,113) |  |
Intangible assets, Net Book Value | $ 169,087 |  |  | 190,648 |  |
Licenses [Member] | Minimum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 8 years |  |  |  |  |
Licenses [Member] | Maximum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 17 years |  |  |  |  |
CELLECTRA [Member] |  |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | $ 8,106,270 |  |  | 8,106,270 |  |
Intangible assets, Accumulated Amortization | (6,718,257) |  |  | (6,397,947) |  |
Intangible assets, Net Book Value | $ 1,388,013 |  |  | 1,708,323 |  |
CELLECTRA [Member] | Minimum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 5 years |  |  |  |  |
CELLECTRA [Member] | Maximum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 11 years |  |  |  |  |
GHRH [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 11 years |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | $ 335,314 |  |  | 335,314 |  |
Intangible assets, Accumulated Amortization | (232,344) |  |  | (208,581) |  |
Intangible assets, Net Book Value | 102,970 |  |  | 126,733 |  |
Bioject [Member] |  |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | 5,100,000 |  |  | 0 |  |
Intangible assets, Accumulated Amortization | (351,389) |  |  | 0 |  |
Intangible assets, Net Book Value | $ 4,748,611 |  |  | 0 |  |
Bioject [Member] | Minimum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 2 years |  |  |  |  |
Bioject [Member] | Maximum [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 15 years |  |  |  |  |
Other [Member] |  |  |  |  |  |
Schedule of intangible assets by major asset class |  |  |  |  |  |
Useful Life | 18 years |  |  |  |  |
Amortizing: |  |  |  |  |  |
Intangible assets, Gross | $ 4,050,000 |  |  | 4,050,000 |  |
Intangible assets, Accumulated Amortization | (2,625,000) |  |  | (2,456,250) |  |
Intangible assets, Net Book Value | $ 1,425,000 |  |  | $ 1,593,750 |  |

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