Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Jan. 01, 2023
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	34.00%	34.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ 817,832	$ 0	$ 0
Deferred Tax Assets, Valuation Allowance	6,925,123	$ 68,608,401	$ 68,676,033
United States [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	1,000,000
United Kingdom [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 16,000,000
United Kingdom [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	20.00%
United Kingdom [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	19.00%
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Other, Amount	$ 6,300,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ 800,000