Share-Based Payment Arrangements (Details 4) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 422,953	$ 2,328,218
Restricted stock and restricted stock units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	167,369	694,786
Restricted stock and restricted stock units | Directors, officers, and employees
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	167,369	598,549
Restricted stock and restricted stock units | Non-employee consultants
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 0	$ 96,237