Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition and Contracts with Customers (Company's total revenue was comprised of four major product lines) (Detail)

v3.19.1
Revenue Recognition and Contracts with Customers (Company's total revenue was comprised of four major product lines) (Detail) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Revenue $ 1,373,371 $ 1,543,895
Smart Glasses and iWear Video Headphones Sales [Member]    
Revenue 1,278,371 1,212,771
OEM Product Sales [Member]    
Revenue 0 114,170
Waveguide and Display Engine Sales [Member]    
Revenue 95,000 36,438
Engineering Services [Member]    
Revenue $ 0 $ 180,516