Fair Value Measurements (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Liabilities:
Derivative liabilities related to warrants	$ 3,297,077	$ 3,006,021
Recurring basis | Estimate of Fair Value Measurement
Assets:
Money market fund	65,016,222	27,123,587
Total Assets	65,016,222	27,123,587
Liabilities:
Derivative liabilities related to warrants	3,297,077	3,006,021
Total Liabilities	3,297,077	3,006,021
Recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Assets:
Money market fund	65,016,222	27,123,587
Total Assets	65,016,222	27,123,587
Recurring basis | Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities related to warrants	3,297,077	3,006,021
Total Liabilities	$ 3,297,077	$ 3,006,021