Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Accounting Policies [Abstract]

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentrations. Two licensees individually accounted for 73% and 12% of revenues recognized during the three months ended March 31, 2017, and four licensees accounted for 22%, 19%, 16% and 11% of revenues recognized during the three months ended March 31, 2016. For the three months ended March 31, 2017 and 2016, 92% and 25%, respectively, of revenues were attributable to licensees domiciled in foreign jurisdictions, based on the jurisdiction of the entity obligated to satisfy payment obligations pursuant to the applicable revenue arrangement. The Company does not have any material foreign operations.

Two licensees individually represented approximately 84% and 10% of accounts receivable at March 31, 2017. Four licensees individually represented approximately 39%, 22%, 16% and 15% of accounts receivable at December 31, 2016.