Segment Information (Details) - Summary of sales by product type - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Total revenue	$ 4,467	$ 3,526
Optical [Member]
Revenue from External Customer [Line Items]
Total revenue	3,611	3,338
Rubicon DTP [Member]
Revenue from External Customer [Line Items]
Total revenue	850	179
Core [Member]
Revenue from External Customer [Line Items]
Total revenue	$ 6	$ 9