Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Summary of Stock Based Compensation Expense (Details)

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Summary of Significant Accounting Policies - Summary of Stock Based Compensation Expense (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Stock-based compensation expense $ 55,616 $ 21,488 $ 110,506 $ 40,384
Research and Development        
Stock-based compensation expense 11,523 10,301 22,865 17,854
Selling and Marketing        
Stock-based compensation expense 7,099 5,914 14,075 11,905
General and Administrative        
Stock-based compensation expense $ 36,994 $ 5,273 $ 73,566 $ 10,625