Share-Based Payment Arrangements (Details 6) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 1,929,377	$ 1,466,183	$ 1,705,429
Non-employee consultants | Share-based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	73,539	1,173	37,379
Non-employee consultants | Non-qualified stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	73,539	1,173	37,379
Non-employee consultants | Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 0	$ 0	$ 0