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Goodwill and Intangible Assets (Details) - USD ($) | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014 | 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 | (15,284,429) | (14,841,814) |  |
Intangible assets, Net Book Value | 4,333,444 | 4,776,059 |  |
Total goodwill and intangible assets, Gross | 29,731,244 | 29,731,244 |  |
Total goodwill and intangible assets, Net Book Value | 14,446,815 | 14,889,430 |  |
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 | (5,444,794) | (5,358,433) |  |
Intangible assets, Net Book Value | $ 357,734 | 444,095 |  |
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 | (1,118,739) | (1,104,366) |  |
Intangible assets, Net Book Value | $ 205,022 | 219,395 |  |
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 | (6,184,406) | (5,970,866) |  |
Intangible assets, Net Book Value | $ 1,921,864 | 2,135,404 |  |
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 | (192,740) | (176,899) |  |
Intangible assets, Net Book Value | $ 142,574 | 158,415 |  |
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 | (2,343,750) | (2,231,250) |  |
Intangible assets, Net Book Value | $ 1,706,250 | $ 1,818,750 |  |

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