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Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of intangible assets
Intangible assets consisted of the following at December 31:
 
 
2014
 
2013
 
 
 
 
 
Product and license rights
 
$
16,477,749

 
$
12,139,031

Less: accumulated amortization
 
(2,225,949
)
 
(1,096,238
)
Total product and license rights
 
14,251,800

 
11,042,793

Patents
 
8,194,264

 
4,866,570

Less: accumulated amortization
 
(877,523
)
 
(410,544
)
Total patents
 
7,316,741

 
4,456,026

Trademarks
 
9,020

 
9,020

Less: accumulated amortization
 
(9,020
)
 
(9,020
)
Total trademarks
 
—

 
—

Total intangible assets
 
$
21,568,541

 
$
15,498,819
Schedule of expected amortization expense of intangible assets
The expected amortization expense for the Company's current balance of intangible assets are as follows:
Year ending December 31:
 
 
2015
 
$
1,949,396

2016
 
1,949,396

2017
 
1,949,396

2018
 
1,949,396

2019 and thereafter
 
13,770,957

 
 
$
21,568,541