Income Taxes (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax at Federal statutory rate	$ (543,836)	$ (2,345,606)	$ (4,377,225)
Increase (reduction) in income taxes resulting from:
State and local taxes	3,195	10,182	8,948
Non-deductible expenses	(31,199)	52,565	25,295
Settlement costs	0	(80,406)	56,882
Net effect of foreign operations	235,850	129,003	552,855
Uncertain tax positions	26,814	28,485	(2,173,905)
Change in valuation allowance	680,780	2,715,868	4,333,382
Other	3,939	0	0
Total provision (benefit) for income taxes	$ 375,543	$ 510,091	$ (1,573,768)