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Goodwill and Intangible Assets (Details) - USD ($) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015 | Jun. 30, 2009 | Jan. 31, 2005
Non-Amortizing: |  |  |  |
Goodwill, Gross | $ 10,113,371 | $ 10,113,371 |  |
Goodwill, Net Book Value | 10,113,371 | 10,113,371 |  |
Amortizing: |  |  |  |
Intangible assets, Gross | 19,617,873 | 19,617,873 |  |
Intangible assets, Accumulated Amortization | (15,921,555) | (15,712,013) |  |
Intangible assets, Net Book Value | 3,696,318 | 3,905,860 |  |
Total goodwill and intangible assets, Gross | 29,731,244 | 29,731,244 |  |
Total goodwill and intangible assets, Net Book Value | 13,809,689 | 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 |
Patents [Member] |  |  |  |
Amortizing: |  |  |  |
Intangible assets, Gross | 5,802,528 | 5,802,528 |  |
Intangible assets, Accumulated Amortization | (5,547,536) | (5,516,122) |  |
Intangible assets, Net Book Value | $ 254,992 | 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 | (1,140,300) | (1,133,113) |  |
Intangible assets, Net Book Value | $ 183,461 | 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 | (6,504,717) | (6,397,947) |  |
Intangible assets, Net Book Value | $ 1,601,553 | 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 | (216,502) | (208,581) |  |
Intangible assets, Net Book Value | $ 118,812 | 126,733 |  |
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 | (2,512,500) | (2,456,250) |  |
Intangible assets, Net Book Value | $ 1,537,500 | $ 1,593,750 |  |

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