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Segments and Geographical Information (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]      
Total revenues $ 27,427 $ 25,599 $ 27,601
Long-lived assets [1] 514 480 556
Israel [Member]      
Segment Reporting Information [Line Items]      
Total revenues 20,619 19,044 22,166
Long-lived assets [1] 514 480 556
India [Member]      
Segment Reporting Information [Line Items]      
Total revenues 3,119 3,140 1,039
Long-lived assets [1]
Far East [Member]      
Segment Reporting Information [Line Items]      
Total revenues 2,964 1,390 2,257
Long-lived assets [1]
Europe [Member]      
Segment Reporting Information [Line Items]      
Total revenues 314 1,170 1,624
Long-lived assets [1]
America [Member]      
Segment Reporting Information [Line Items]      
Total revenues 411 855 515
Long-lived assets [1]
[1] Long-lived assets are comprised of property and equipment (intangible assets and goodwill are not included).