I think I've got a few more minutes left. So I'm really glad to hear that we didn't just decide to kind of go backwards in time and that we are keeping up with some of these opportunities. And I think that's great if people don't have to travel when they don't need to. Is it safe then to assume that some of this upgrade then is the increase for the materials and supply costs for this unit? There's looks to be about $100,000 that was during the pandemic time versus last year and this year -- or the upcoming year. I'm just curious to know if that's for that type of service. Thank you.