 Gary, when we're upstairs, you talked about ICFs. You mentioned those insulated concrete forms. Can you kind of talk about the advantage of those? Why would you use those in the buildings and how good are they? Sure. You bet. Well, this is the actual form right here. They come eight feet long by 18 inches high and we build the entire basement walls with this and then we pour our concrete in here. So you still have the strength of concrete, but essentially what we've done is we've super insulated our basement. Typical basement is going to be about an R11 and this is an R value of 22. So it's just much warmer. It's actually safer because you don't have the issue of mold growing. We're stopping the cold on the outside and you can actually see here. Here's the panel, the inside insulation and the outside. What we do is we waterproof the outside with a peel and stick membrane and so no water transfers through here. It's actually waterproof, not just damp proof. And then on the inside, we screw our sheet rock right to the tabs and you can see kind of a cutaway. There's some black plastic tabs and we line these all the way up. So floor to ceiling you have essentially an inch and a half wide stud in that's buried behind the foam and so you can actually screw your sheet rock right to this. So essentially with stopping the cold on the outside, you're not going to have a freezing wall on the inside that if you don't totally seal that up, you're going to have mold growing if you fill that cavity full of fiberglass. We don't have that issue with an ICF because we're stopping it from the outside and then it's just foam here so there's no place for mold to start growing. And so it just translates into a much warmer basement. It's safer if the basement is unfinished. Somebody can come in here and actually, you know, we, by code we sheet rock the walls already and we put the electrical in so it's already set up so your costs are going to be even less to come in. You don't have any framing on the outside walls to do. It's all ready to go. So it just, it's a quieter system. It's safer and it's just that much more thermally efficient too.