Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Sep. 16, 2013	Dec. 31, 2012
Marketable securities:
Marketable securities, fair value	$ 8,073,108		$ 10,530,942
Derivative instruments, fair value	159,134	170,337
Government securities and corporate debt securities
Marketable securities:
Marketable securities, fair value	8,100,000		10,500,000
Recurring
Cash equivalents:
Total cash equivalents	8,486,633		4,285,309
Marketable securities:
Marketable securities, fair value	8,073,108		10,530,942
Derivative instruments, fair value	159,134
Total derivative liabilities measured at fair value	159,134
Total assets and liabilities measured at fair value	16,718,875
Total assets measure at fair value			14,816,251
Recurring | Government securities and corporate debt securities
Marketable securities:
Marketable securities, fair value	8,073,108		10,530,942
Recurring | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	8,486,633
Recurring | Money market funds
Cash equivalents:
Total cash equivalents			4,285,309
Recurring | Fair Value, Inputs, Level 1
Cash equivalents:
Total cash equivalents	8,486,633		4,285,309
Marketable securities:
Marketable securities, fair value	0		0
Derivative instruments, fair value	0
Total derivative liabilities measured at fair value	0
Total assets and liabilities measured at fair value	8,486,633
Total assets measure at fair value			4,285,309
Recurring | Fair Value, Inputs, Level 1 | Government securities and corporate debt securities
Marketable securities:
Marketable securities, fair value	0		0
Recurring | Fair Value, Inputs, Level 1 | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	8,486,633
Recurring | Fair Value, Inputs, Level 1 | Money market funds
Cash equivalents:
Total cash equivalents			4,285,309
Recurring | Fair Value, Inputs, Level 2
Cash equivalents:
Total cash equivalents	0		0
Marketable securities:
Marketable securities, fair value	8,073,108		10,530,942
Derivative instruments, fair value	0
Total derivative liabilities measured at fair value	0
Total assets and liabilities measured at fair value	8,073,108
Total assets measure at fair value			10,530,942
Recurring | Fair Value, Inputs, Level 2 | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	0
Recurring | Fair Value, Inputs, Level 2 | Money market funds
Cash equivalents:
Total cash equivalents			0
Recurring | Fair Value, Inputs, Level 3
Cash equivalents:
Total cash equivalents	0		0
Marketable securities:
Marketable securities, fair value	0		0
Derivative instruments, fair value	159,134
Total derivative liabilities measured at fair value	159,134
Total assets and liabilities measured at fair value	159,134
Total assets measure at fair value			0
Recurring | Fair Value, Inputs, Level 3 | Government securities and corporate debt securities
Marketable securities:
Marketable securities, fair value	0		0
Recurring | Fair Value, Inputs, Level 3 | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	0
Recurring | Fair Value, Inputs, Level 3 | Money market funds
Cash equivalents:
Total cash equivalents			$ 0