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v3.20.2

Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 758 | $ 1,710 | $ 2,052 | $ 3,722
Revenues percentage | 100.00% | 100.00% | 100.00% | 100.00%
United States [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 265 | $ 898 | $ 854 | $ 1,962
Revenues percentage | 35.00% | 53.00% | 42.00% | 53.00%
Japan [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 360 | $ 417 | $ 834 | $ 1,017
Revenues percentage | 48.00% | 24.00% | 41.00% | 27.00%
Germany [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 24 | $ 185 | $ 144 | $ 371
Revenues percentage | 3.00% | 11.00% | 7.00% | 10.00%
Switzerland [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 52 | $ 40 | $ 107 | $ 57
Revenues percentage | 7.00% | 2.00% | 5.00% | 2.00%
China [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 15 | $ 53 | $ 49 | $ 128
Revenues percentage | 2.00% | 3.00% | 2.00% | 3.00%
Taiwan [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 9 | $ (22) | $ 9 | $ 18
Revenues percentage | 1.00% | (1.00%) |  | 0.00%
Other [Member] |  |  |  |
Summary of net revenues by geographic region |  |  |  |
Total revenues | $ 33 | $ 139 | $ 55 | $ 169
Revenues percentage | 4.00% | 8.00% | 3.00% | 5.00%

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