Quarterly report pursuant to Section 13 or 15(d)

Investment in Software Company (Details)

v3.10.0.1
Investment in Software Company (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 06, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Gain on sale of BriefCam, Ltd.   $ 6,502 $ 0 $ 6,502 $ 0  
BriefCam Ltd            
Cost method investments   3,100   3,100   $ 3,100
BriefCam Ltd | Maximum            
Minority ownership interest (less than 20%) 20.00%         20.00%
BriefCam, Canon Inc            
Sale of investment, consideration transferred $ 9,678          
Gain on sale of BriefCam, Ltd.   $ 6,500   $ 6,500