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v3.19.2

Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 1,710 | $ 1,876 | $ 3,722 | $ 4,251
Revenues percentage | 100.00% | 100.00% | 100.00% | 100.00%
United States [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 898 | $ 792 | $ 1,962 | $ 1,931
Revenues percentage | 53.00% | 42.00% | 54.00% | 45.00%
Japan [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 417 | $ 708 | $ 1,017 | $ 1,496
Revenues percentage | 24.00% | 38.00% | 27.00% | 35.00%
Germany [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 185 | $ 181 | $ 371 | $ 409
Revenues percentage | 11.00% | 10.00% | 10.00% | 10.00%
China [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 53 | $ 69 | $ 128 | $ 198
Revenues percentage | 3.00% | 4.00% | 3.00% | 5.00%
Taiwan [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ (22) | $ 46 | $ 18 | $ 110
Revenues percentage | (1.00%) | 2.00% |  | 3.00%
Singapore [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues |  | $ (1) | $ 2 |
Revenues percentage |  |  |  |
United Arab Emirates [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues |  | $ 48 |  | $ 48
Revenues percentage |  | 3.00% |  | 1.00%
Canada [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 7 |  | $ 7 |
Revenues percentage |  |  |  |
South Korea [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues |  | $ 23 | $ 4 |
Revenues percentage |  | 1.00% |  | 0.00%
Switzerland [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 40 |  | $ 57 |
Revenues percentage | 2.00% |  | 2.00% |
France [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 131 |  | $ 152 |
Revenues percentage | 8.00% |  | 4.00% |
Other [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 1 | $ 10 | $ 4 | $ 59
Revenues percentage |  | 0.00% |  | 1.00%

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