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Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of intangible assets by major asset class
The following sets forth the goodwill and intangible assets by major asset class:
 
 
 
 
March 31, 2013
 
December 31, 2012
 
Useful
Life
(Yrs)
Gross
 
Accumulated
Amortization
 
Net Book
Value
 
Gross
 
Accumulated
Amortization
 
Net Book
Value
Non-Amortizing:
 
 
 
 
 
 
 
 
 
 
 
 
 
Goodwill(a)
 
 
$
10,113,371

 
$
—

 
$
10,113,371

 
$
10,113,371

 
$
—

 
$
10,113,371

Amortizing:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patents
8 – 17
 
5,802,528

 
(4,926,854
)
 
875,674

 
5,802,528

 
(4,852,673
)
 
949,855

Licenses
8 – 17
 
1,323,761

 
(1,054,057
)
 
269,704

 
1,323,761

 
(1,046,870
)
 
276,891

CELLECTRA®(b)
5 – 11
 
8,106,270

 
(4,636,622
)
 
3,469,648

 
8,106,270

 
(4,334,234
)
 
3,772,036

GHRH(b)
11
 
335,314

 
(121,452
)
 
213,862

 
335,314

 
(113,531
)
 
221,783

Other(c)
18
 
4,050,000

 
(1,837,500
)
 
2,212,500

 
4,050,000

 
(1,781,250
)
 
2,268,750

Total intangible assets
 
 
19,617,873

 
(12,576,485
)
 
7,041,388

 
19,617,873

 
(12,128,558
)
 
7,489,315

Total goodwill and intangible assets
 
 
$
29,731,244

 
$
(12,576,485
)
 
$
17,154,759

 
$
29,731,244

 
$
(12,128,558
)
 
$
17,602,686


(a)
Goodwill was recorded from the Inovio AS acquisition in January 2005 and from the acquisition of VGX in June 2009 for $3.9 million and $6.2 million, respectively.
(b)
CELLECTRA® and GHRH are developed technologies which were recorded from the acquisition of VGX.
(c)
Other intangible assets represent the fair value of acquired contracts and intellectual property from the Inovio AS acquisition.