Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loss before income taxes:
Domestic loss	$ (13,466,322)	$ (15,356,162)	$ (24,181,349)
Foreign income	959,964	1,158,248	2,021,398
Loss before income taxes	(12,506,358)	(14,197,914)	(22,159,951)
(Benefit)/provision for income taxes:
Federal	(1,823,192)	105,198	94,974
State and local	(209,079)	18,747	11,453
Foreign	348,300	745,812	1,262,339
Total	(1,683,971)	869,757	1,368,766
Deferred:
Federal	14,875	14,876	14,876
State and local	981	981	981
Foreign	94,347	(99,207)	(176,291)
Total	110,203	(83,350)	(160,434)
Income Tax Expense (Benefit)	$ (1,573,768)	$ 786,407	$ 1,208,332