Segment Information (Details) - Schedule of sales by product type - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	$ 729	$ 1,160
Optical [Member]
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	495	1,027
Rubicon DTP [Member]
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	$ 234	$ 133