Fair Value Measurements (Details) (USD $)	Mar. 31, 2014	Sep. 16, 2013	Mar. 31, 2014 Recurring	Dec. 31, 2013 Recurring	Mar. 31, 2014 Fair Value, Inputs, Level 1 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 1 Recurring	Mar. 31, 2014 Fair Value, Inputs, Level 2 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 2 Recurring	Mar. 31, 2014 Fair Value, Inputs, Level 3 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 3 Recurring	Mar. 31, 2014 Corporate debt and government securities Recurring	Dec. 31, 2013 Corporate debt and government securities Recurring	Mar. 31, 2014 Corporate debt and government securities Fair Value, Inputs, Level 1 Recurring	Dec. 31, 2013 Corporate debt and government securities Fair Value, Inputs, Level 1 Recurring	Mar. 31, 2014 Corporate debt and government securities Fair Value, Inputs, Level 2 Recurring	Dec. 31, 2013 Corporate debt and government securities Fair Value, Inputs, Level 2 Recurring	Mar. 31, 2014 Corporate debt and government securities Fair Value, Inputs, Level 3 Recurring	Dec. 31, 2013 Corporate debt and government securities Fair Value, Inputs, Level 3 Recurring	Mar. 31, 2014 Money market funds and commercial paper Recurring	Dec. 31, 2013 Money market funds and commercial paper Recurring	Mar. 31, 2014 Money market funds and commercial paper Fair Value, Inputs, Level 1 Recurring	Dec. 31, 2013 Money market funds and commercial paper Fair Value, Inputs, Level 1 Recurring	Mar. 31, 2014 Money market funds and commercial paper Fair Value, Inputs, Level 2 Recurring	Dec. 31, 2013 Money market funds and commercial paper Fair Value, Inputs, Level 2 Recurring	Mar. 31, 2014 Money market funds and commercial paper Fair Value, Inputs, Level 3 Recurring	Dec. 31, 2013 Money market funds and commercial paper Fair Value, Inputs, Level 3 Recurring
Cash equivalents:
Total cash equivalents			$ 7,916,260	$ 8,486,633	$ 7,916,260	$ 8,486,633	$ 0	$ 0	$ 0	$ 0									$ 7,916,260	$ 8,486,633	$ 7,916,260	$ 8,486,633	$ 0	$ 0	$ 0	$ 0
Marketable securities:
Total marketable securities			9,645,934	8,073,108	0	0	9,645,934	8,073,108	0	0	9,645,934	8,073,108	0	0	9,645,934	8,073,108	0	0
Derivative liabilities:
Derivative Instruments	127,288	170,337	127,288	159,134	0	0	0	0	127,288	159,134
Total derivative liabilities			127,288	159,134	0	0	0	0	127,288	159,134
Total assets and liabilities measured at fair value			$ 17,689,482	$ 16,718,875	$ 7,916,260	$ 8,486,633	$ 9,645,934	$ 8,073,108	$ 127,288	$ 159,134