Fair Value Measurements (Details) (USD $)	Jun. 30, 2014	Sep. 16, 2013	Jun. 30, 2014 Recurring	Dec. 31, 2013 Recurring	Jun. 30, 2014 Fair Value, Inputs, Level 1 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 1 Recurring	Jun. 30, 2014 Fair Value, Inputs, Level 2 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 2 Recurring	Jun. 30, 2014 Fair Value, Inputs, Level 3 Recurring	Dec. 31, 2013 Fair Value, Inputs, Level 3 Recurring	Jun. 30, 2014 Corporate debt and government securities Recurring	Dec. 31, 2013 Corporate debt and government securities Recurring	Jun. 30, 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	Jun. 30, 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	Jun. 30, 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	Jun. 30, 2014 Money market funds and commercial paper Recurring	Dec. 31, 2013 Money market funds and commercial paper Recurring	Jun. 30, 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	Jun. 30, 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	Jun. 30, 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	Jun. 30, 2014 Corporate debt and government securities Recurring	Jun. 30, 2014 Corporate debt and government securities Fair Value, Inputs, Level 1 Recurring	Jun. 30, 2014 Corporate debt and government securities Fair Value, Inputs, Level 2 Recurring	Jun. 30, 2014 Corporate debt and government securities Fair Value, Inputs, Level 3 Recurring
Cash equivalents:
Total cash equivalents			$ 7,854,381	$ 8,486,633	$ 6,950,932	$ 8,486,633	$ 903,449	$ 0	$ 0	$ 0									$ 6,950,932	$ 8,486,633	$ 6,950,932	$ 8,486,633	$ 0	$ 0	$ 0	$ 0	$ 903,449	$ 0	$ 903,449	$ 0
Marketable securities:
Total marketable securities			9,694,304	8,073,108	0	0	9,694,304	8,073,108	0	0	9,694,304	8,073,108	0	0	9,694,304	8,073,108	0	0
Derivative liabilities:
Derivative Instruments	111,470	170,337	111,470	159,134	0	0	0	0	111,470	159,134
Total derivative liabilities			111,470	159,134	0	0	0	0	111,470	159,134
Total assets and liabilities measured at fair value			$ 17,660,155	$ 16,718,875	$ 6,950,932	$ 8,486,633	$ 10,597,753	$ 8,073,108	$ 111,470	$ 159,134