Restructuring Costs - Schedule Of Restructuring Costs (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Provisions/Additions	$ 83,984	$ 134,476
Utilized/Paid	(54,846)	(181,655)
Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	732,662	1,028,915	$ 1,028,915	$ 1,306,493
Provisions/Additions	83,984		172,995	1,135,310	$ 3,606,020
Utilized/Paid	(54,846)		(469,248)	(1,412,888)	(2,299,527)
Ending Balance	761,800		732,662	1,028,915	1,306,493
Severance related costs | Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	717,640	823,426	823,426	1,111,577
Provisions/Additions	76,030		55,527	365,174	3,179,131
Utilized/Paid	(36,531)		(161,313)	(653,325)	(2,067,554)
Ending Balance	757,139		717,640	823,426	1,111,577
Facility and other costs | Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	15,022	$ 205,489	205,489	194,916
Provisions/Additions	7,954		117,468	770,136	426,889
Utilized/Paid	(18,315)		(307,935)	(759,563)	(231,973)
Ending Balance	$ 4,661		$ 15,022	$ 205,489	$ 194,916