Restructuring Charges (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 790,438	$ 0	$ 0
Allocated Share-based Compensation Expense	(7,504,316)	$ (3,946,027)	$ (2,070,194)
Restructuring Reserve	418,000
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	358,000
Allocated Share-based Compensation Expense	60,000
Impaired Long-Lived Assets
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 432,000