Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition and Contracts with Customers - Company's total revenue by major product lines (Details)

v3.20.1
Revenue Recognition and Contracts with Customers - Company's total revenue by major product lines (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Revenue $ 1,531,715 $ 1,373,371
Smart Glasses Sales [Member]    
Revenue 1,371,509 1,278,371
Waveguide and Display Engine Sales [Member]    
Revenue   $ 95,000
Engineering Services [Member]    
Revenue $ 160,206