Related Party Transactions (Details Textual) - Memorial Sloan Kettering Cancer Center [Member] - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Related Party Transactions (Textual) | ||
| Royalty description |
Under the agreement, the Company shall pay to MSKCC on a country-by-country basis a royalty of 2% of net sales of all licensed products until the later of: (1) 10 years from the first commercial sale, or (2) when the patents expire. |
|
| Maintenance fees and research cost | $ 100,000 | $ 0 |