Litigation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loss Contingencies [Line Items]
Investigation, litigation and settlement related (benefit) expenses	$ 8,842	$ (5,417,925)	$ 373,619
Maximum
Loss Contingencies [Line Items]
Investigation, litigation and settlement related (benefit) expenses	$ 100,000