First of all, let me say that healthcare is pretty immediate. It's -- the good thing about it is it's been in place, it's been accelerating, thanks to COVID. I mean, hate saying it that way but it's changed a lot of things in the AR space COVID. That whole retail picking space is going to be very big, Tyler. As big as the healthcare is, there are thousands of people and organizations that move boxes around, logistics. How you get something from point A to point B, it is a massive industry. Healthcare on the SaaS model perspective, which is some of the things that we're working with our partners and stuff, I think that there's lots of opportunity to grow, and of course we're going to sell lots of hardware at the same time, but I think you'll probably see -- I don't know if it's an order of magnitude, but that picking side of the business is significant. That will start to move and grow for Vuzix, especially into 2022. It's nice to see these companies after all this time finally making commitments. They are beyond pilots now. They're -- how do we roll these things out, kind of things. So, 2022, I think you'll see a significant contribution and growth to that side of our business, which I always felt was going to be there, but it's nice to see it really coming around. So, Healthcare versus the logistics side of the business, Healthcare is going to be bigger in the end. , and right now it's clearly healthcare. On the OEM side of our business, we -- so it's interesting. Earlier on in the game, we would get larger dollar values from an engineering perspective to make custom solutions and those kinds of things, we have some standard stuff now that a lot of folks are able to just use. And so they're buying stuff from us. They are building it into their programs, and we're expecting volume programs out of those things as we roll through the next years or so. So, it will grow. It's going to take longer. I will say that it can also be a really significant decent business, but it's going to take a lot longer perspective to be there. The broader markets take forever before they are there. And these -- all these depends guys, you know what it's like until you finally get the program kicked off, and when you do you are in. So, number 1 is the enterprise logistics on-boarding training, it's going to be the biggest market by far, I think at least to get started. Number 2, the medical space and then number 3, the OEM today. But in the long run, we will see where that goes.