Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 23, 2015	Jan. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jul. 06, 2015	Mar. 31, 2015
Commitment And Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 113,100,000
Loss Contingency, Damages Awarded, Value		194,600,000
Litigation Settlement, Expense		$ 81,500,000
Maximum Amount Of Reimbursement			$ 210,000			$ 210,000
Annual License Payment			$ 200,000			$ 200,000
Warrant Expiration Date			Jan. 28, 2015
Restructuring Charges, Total			$ 2,546,159	$ 0	$ 0
License Costs			300,000
Operating Leases, Rent Expense			700,000	800,000	800,000
Maintenance Costs			$ 100,000	$ 100,000	$ 40,000
Percentage Of Common Stock Delivered			100.00%
Litigation Settlement Interest	$ 205,000,000
Government Contract Receivable, Progress Payments Offset							$ 5,800,000
Operating Lease Term			10 years
Operating Leases, Rent Expense, Sublease Rentals			$ 200,000
Sublease Agreement [Member]
Commitment And Contingencies [Line Items]
Restructuring Charges, Total			$ 400,000
Group Three [Member]
Commitment And Contingencies [Line Items]
Percentage Of Aggregate Principal Amount Redemption			1.00%
Notes Payable Aggregate Principal Repayment Amount			$ 200,000
Group Four [Member]
Commitment And Contingencies [Line Items]
Percentage Of Aggregate Principal Amount Redemption			1.00%
Notes Payable Aggregate Principal Repayment Amount			$ 200,000
Pharm Athene [Member]
Commitment And Contingencies [Line Items]
License Costs			$ 200,000