Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Tax at Federal statutory rate	$ (2,345,606)	$ (4,377,225)	$ (4,969,270)
Increase (reduction) in income taxes resulting from:
State and local taxes	10,182	8,948	(3,130)
Non-deductible expenses	52,565	25,295	50,070
Settlement costs	(80,406)	56,882	(553,700)
Net effect of foreign operations	129,003	552,855	259,592
Uncertain tax positions	28,485	(2,173,905)	140,625
Change in valuation allowance	2,715,868	4,333,382	5,862,220
Total provision (benefit) for income taxes	$ 510,091	$ (1,573,768)	$ 786,407