Annual report pursuant to Section 13 and 15(d)

Information Concerning Industry Segments And Major Customers (Narrative) (Details)

v3.3.1.900
Information Concerning Industry Segments And Major Customers (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
segment
Dec. 31, 2014
USD ($)
Dec. 31, 2013
Segment Reporting Information [Line Items]      
Number of segments | segment 3    
Foreign Countries [Member] | Suttle [Member]      
Segment Reporting Information [Line Items]      
Long-lived assets | $ $ 2,932 $ 2,810  
United States [Member] | Sales [Member]      
Segment Reporting Information [Line Items]      
Concentration risk percentage 81.00% 86.00% 87.00%
One Customer [Member] | Sales [Member] | JDL Technologies [Member]      
Segment Reporting Information [Line Items]      
Concentration risk percentage 10.90%   17.50%
One Customer [Member] | Sales [Member] | Suttle [Member]      
Segment Reporting Information [Line Items]      
Concentration risk percentage 16.20% 33.60% 18.70%