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Business Segmentation and Geographical Distribution (Detail Narratives)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Number
Jun. 30, 2018
USD ($)
Number of business segments | Number     1  
International Sources [Member]        
Revenue from international sources | $ $ 243 $ 164 $ 700 $ 183