Fee Income	9 Months Ended
Sep. 30, 2015
Fee Income [Abstract]
Fee Income	Fee Income Fee income represents amounts earned by the Company under various license and other agreements relating to technology developed by the Company. During the first nine months of 2015, two licensees accounted for 10% or more of fee income of the Company; these licensees accounted for approximately 33% and 15% respectively of fee income recognized during this period. In addition, during the nine months ended September 30, 2015, approximately 17% of revenues related to a fee received due to the Company's participation in the Milan 2015 Expo and no such income from this project was recorded in the comparable period. During the first nine months of 2014, one licensee accounted for 10% or more of fee income of the Company; this licensee accounted for approximately 38% of fee income recognized during such period.

Fee Income

Fee income represents amounts earned by the Company under various license and other agreements relating to technology developed by the Company. During the first nine months of 2015, two licensees accounted for 10% or more of fee income of the Company; these licensees accounted for approximately 33% and 15% respectively of fee income recognized during this period. In addition, during the nine months ended September 30, 2015, approximately 17% of revenues related to a fee received due to the Company's participation in the Milan 2015 Expo and no such income from this project was recorded in the comparable period. During the first nine months of 2014, one licensee accounted for 10% or more of fee income of the Company; this licensee accounted for approximately 38% of fee income recognized during such period.