Debt

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Debt

Note 6 - Debt

As of March 31, 2017 and December 31, 2016, the Company’s outstanding debt consisted of the $1.0 million Merck Note that is due in July 2017 (see Note 4).

Total interest expense on all debt instruments was $29,844 and $41,734 for the three months ended March 31, 2017 and 2016, respectively.