Yes, I can certainly. It helps, I think to focus on this California project in whole, if you and I get straight, if you recall, this actually being comprised of three purchase orders that we've received over the past year. The first was for the -- the initial phase, the engineering, and some computer fluid dynamic modeling. The second then progressed into burner testing, we had to fabricate four burners for that testing. And then this final phase, the purchase order we received yesterday for the fabrication and supplier of the 20 burners that put our arms around the size and value of the order. And I really did help everyone build up and to track the value of all our other orders. I'll give some guidance, it will be aligned to what you've given before. A reasonable estimation of about $100,000 a burner is appropriate, you can add some controls equipment to those burners in the range of $10,000 to $15,000 per burner. The engineering phase will be in the region of $200,000, $250,000, somewhere in that range. And then depending on the complexity of testing, that's going to be in the region of $200,000, $250,000 somewhere in that range, you can build that up to give a magnitude of that order. And then as you look at the other orders we have received in the past, and using those numbers for future orders, you'll be able to gauge now, how important they are to ClearSign.