Annual report pursuant to Section 13 and 15(d)

Segment Information (Details Textual)

v3.8.0.1
Segment Information (Details Textual)
$ in Millions
12 Months Ended
Dec. 31, 2017
USD ($)
Segments
Dec. 31, 2016
USD ($)
Segment Information (Textual)    
Number of segments | Segments 4  
United States [Member]    
Segment Information (Textual)    
Long-lived assets $ 1.2 $ 1.2
International [Member]    
Segment Information (Textual)    
Long-lived assets $ 0.1 $ 0.1