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
|