Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

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

Concentrations. Four licensees individually accounted for 22%, 19%, 16% and 11% of revenues recognized during the three months ended March 31, 2016, and two licensees individually accounted for 58% and 15% of revenues recognized during the three months ended March 31, 2015. For the three months ended March 31, 2016 and 2015, 25% and 62%, 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.

Three licensees individually represented approximately 48%, 22% and 15% of accounts receivable at March 31, 2016. Two licensees individually represented approximately 72% and 21% of accounts receivable at December 31, 2015.