Restructuring Costs - Schedule Of Restructuring Costs (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Restructuring costs	$ 134,476	$ 223,573
Utilized/Paid	(181,655)	(555,516)
Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	1,028,915	1,306,493	1,306,493
Restructuring costs	134,476		1,135,310	3,606,020
Utilized/Paid	(181,655)		(1,412,888)	(2,299,527)
Ending Balance	981,736		1,028,915	1,306,493
Severance related costs | Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	823,426	1,111,577	1,111,577
Restructuring costs	58,755		365,174	3,179,131
Utilized/Paid	(33,688)		(653,325)	(2,067,554)
Ending Balance	848,493		823,426	1,111,577
Facility and other costs | Restructuring Costs Under the 2013 Plan
Restructuring Reserve [Roll Forward]
Beginning Balance	205,489	194,916	194,916
Restructuring costs	75,721		770,136	426,889
Utilized/Paid	(147,967)		(759,563)	(231,973)
Ending Balance	$ 133,243		$ 205,489	$ 194,916