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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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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Publisher FASB
-Name Accounting Standards Codification
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