Summary of Significant Accounting Policies - Stock-Based Compensation Cost (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation cost	$ 405,426	$ 184,966
Selling, General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation cost	367,000	163,540
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation cost	$ 38,426	$ 21,426