Okay. Great. Thank you all for taking the time to join today's call. I do appreciate that. I am not going to rehash a lot of the detail, you can pick up from the press release that we issued last night. But I do want to use this time to highlight four important topics. So, first of all, let’s review the sales growth. We reported a 25% increase in total sales to $13.7 million during 2019 over 2018. This has just continued great work by our sales team, with a product that is delivering visible results to our customers every day. You may recall that sales demand exceeded supply of Tri-Shield First Defense through the first half of 2019, because of difficulty producing enough of the complex rotavirus vaccine use and the manufacturer of this product. I would like to take this opportunity to publicly command our manufacturing and our quality and our product development teams that work together successfully to resolve this production lab challenge at the beginning of 2019. As a result, during the second half of 2019, we were able to return to a mass market selling approach through distribution for Tri-Shield First Defense. For that reason, I think it's also important to compare the sales results for the second half of 2019 to the second half of 2018. Total product sales increased by $1.5 million or 30% to $6.6 million during the six-month period ended December 31, 2019 versus the six-month period ended 2031 -- December 31, 2018. A second comment is that at this stage of the company's development, I believe its top line sales growth and positive cash flows are more important than our bottom line earnings or losses. For this, I point to page four of our press release. I think it is important to look at the non-GAAP disclosures in the press release. I think we should be aware of the amount of certain non-cash expenses that are included in our net loss, like depreciation and amortization, stock-based compensation expense and income taxes. Depreciation expense alone exceeded our loss before income taxes for the year ended December 31, 2019. EBITDA, which is a non-GAAP financial measure, described in more detail on page four last night's press release, increased to approximately $1.4 million during the year ended December 31, 2019 from approximately just $88,000 during the year ended December 31, 2018. Thirdly, I like to talk just a bit about our marketing campaign beyond vaccination. It is all about avoiding unnecessary vaccinations. Save the needles to the mother cows for critical disease vaccinations, and instead deliver First Defense to get the newborn calf off to a healthy start. We believe dairy and beef producers are increasingly coming to understand our value proposition of less needles in cows and less antibiotics in calves. There's a strong link between how we sell our product and the challenges we face in producing it. We know better than most how variable cows' response is to any vaccine. We see this in every batch of first events that we produce. The difference is that we adjust for this variability and antibody content as needed, so the newborn has given steady equal protection with each dose of First Defense. It is the best way for a producer to know that every calf is equally protected. Plus -- and effectively treat a calf does not require expensive antibiotic treatments. To meet growing demand, construction of our expanded manufacturing facility to increase production capacity for the First Defense product line is well under way. We expect to substantially complete this work on schedule around the end of the upcoming second quarter, increasing our annual production capacity from approximately $18 million to approximately $27 million. There will be an opportunity to tour this new space if you're able to make it to our Annual Meeting of Stockholders on June 10 in Portland. We will be posting some pictures of the construction in progress on our website in the next week or so. And lastly with regards to Re-Tain, our manufacturing, quality and product development teams did an outstanding job recently completing our response to an FDA inspection of our Drug Substance production facility. That sets us up for the plan second phase submission of the manufacturing Technical Section to the FDA later this year. This will include responses to queries from the initial first phase Drug Substance submission and detailed information about the manufacturer of our drug products. So, I think we hit the four most important topics; sales growth, the impact of non-cash expenses on our operating results, status of our production, capacity expansion, and the regulatory status of Re-Tain. So, in conclusion, I encourage you to review the press release we filed last night. We expect the file our Annual Report on Form 10-K with all the details on or about March 27, 2020. Also, please take a look at the updated corporate presentation slide deck. A February update will be posted later today. I believe it provides a very good summary of our business strategy and objectives, as well as our current financial results. Also see the Investor Section on our website and click on Corporate Presentation. For that -- to get access that slide deck. I hope -- yeah, I hope you appreciate the streamline approach to this call to save more time for your questions which are important to me. So, with that said, let's have the operator open the lines for your questions. I will be happy to take some questions.