Accrued Contract Cancellation Settlement	12 Months Ended
Dec. 31, 2016
Accrued Contract Cancellation Settlement Disclosure [Abstract]
Accrued Contract Cancellation Settlement	7. Accrued contract cancellation settlement The accrued contract cancellation settlement of $1.0 million was a result of the Company entering into a settlement agreement with Neogen Corporation in which Neogen and the Company agreed to (a) terminate the existing Exclusive License Agreement between us and Neogen dated May 15, 2014 (the “License Agreement”), with neither Neogen or the Company having any further obligations thereunder (other than certain confidentiality obligations); (b) dismiss with prejudice the court action filed by Neogen in the District Court for the District of Arizona on January 19, 2017 (the “Court Action”), and (c) mutually release any and all existing or future claims between the parties and their affiliates related to or arising from the License Agreement or the Court Action. Under the terms of the agreement, the Company agreed to make a one-time payment in the amount of $1.0 million in settlement of all claims and termination of all existing contracts between the parties. See notes 17 and 18 for further details.

Accrued Contract Cancellation Settlement

12 Months Ended

Dec. 31, 2016

Accrued Contract Cancellation Settlement Disclosure [Abstract]

Accrued Contract Cancellation Settlement

7. Accrued contract cancellation settlement

The accrued contract cancellation settlement of $1.0 million was a result of the Company entering into a settlement agreement with Neogen Corporation in which Neogen and the Company agreed to (a) terminate the existing Exclusive License Agreement between us and Neogen dated May 15, 2014 (the “License Agreement”), with neither Neogen or the Company having any further obligations thereunder (other than certain confidentiality obligations); (b) dismiss with prejudice the court action filed by Neogen in the District Court for the District of Arizona on January 19, 2017 (the “Court Action”), and (c) mutually release any and all existing or future claims between the parties and their affiliates related to or arising from the License Agreement or the Court Action. Under the terms of the agreement, the Company agreed to make a one-time payment in the amount of $1.0 million in settlement of all claims and termination of all existing contracts between the parties. See notes 17 and 18 for further details.