Fair Value Measurements (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Marketable securities:
Derivative instruments, fair value	$ 336,862	$ 82,024
Corporate debt and government securities
Marketable securities:
Marketable securities, fair value	0	7,400,000
Recurring
Cash equivalents:
Total cash equivalents	1,133,280	2,725,094
Marketable securities:
Marketable securities, fair value	0	7,420,042
Derivative instruments, fair value	336,862	82,024
Total derivative liabilities measured at fair value	336,862	82,024
Total assets and liabilities measured at fair value	1,470,142	10,227,160
Recurring | Corporate debt and government securities
Marketable securities:
Marketable securities, fair value	0	7,420,042
Recurring | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	1,133,280	2,725,094
Recurring | Fair Value, Inputs, Level 1
Cash equivalents:
Total cash equivalents	1,133,280	2,725,094
Marketable securities:
Marketable securities, fair value	0	0
Derivative instruments, fair value	0	0
Total derivative liabilities measured at fair value	0	0
Total assets and liabilities measured at fair value	1,133,280	2,725,094
Recurring | Fair Value, Inputs, Level 1 | Corporate debt and government 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	1,133,280	2,725,094
Recurring | Fair Value, Inputs, Level 2
Cash equivalents:
Total cash equivalents	0	0
Marketable securities:
Marketable securities, fair value	0	7,420,042
Derivative instruments, fair value	0	0
Total derivative liabilities measured at fair value	0	0
Total assets and liabilities measured at fair value	0	7,420,042
Recurring | Fair Value, Inputs, Level 2 | Corporate debt and government securities
Marketable securities:
Marketable securities, fair value	0	7,420,042
Recurring | Fair Value, Inputs, Level 2 | Money market funds and commercial paper
Cash equivalents:
Total cash equivalents	0	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	336,862	82,024
Total derivative liabilities measured at fair value	336,862	82,024
Total assets and liabilities measured at fair value	336,862	82,024
Recurring | Fair Value, Inputs, Level 3 | Corporate debt and government 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	$ 0