Thank you, Dan. I will review first quarter 2021 financial results. In the first quarter, we recorded approximately $242,000 in grant revenue with offsetting cost of grant revenue, as we continued our work on the Navy funded NAVSEA demonstration project under the DTI contract, which began in mid-2020. Operating expenses in our net loss were flat at $0.9 million in both the first quarters of 2021 and 2020. First quarter 2021 cash used an operating and investing activities was $0.9 million, compared to $0.8 million in the first quarter of 2020. Our first quarter cash burn was consistent with the guidance we provided on our year-end call in March. We expect our cash burn to increase throughout 2021 as we invest in both sales and marketing in research and development. We expect the cash burn of approximately $1 million to $1.1 million in the second quarter of 2021 with an expectation of a full year cash burn of approximately $4.5 million. As previously reported during the first quarter, we raised $21.2 million in net proceeds through an underwritten public offering of common stock. In the first quarter, we also raised $3.3 million from the exercise of options and warrants. With our strengthened balance sheet, we will be better able to support and be a more attractive partner to the larger corporations that we expect to participate in our customer sampling program, as well as modestly build our internal research and development capability, and our product design team, which began with bringing on Dr. Jiankang Bu as our Vice President of Engineering. As an example we expect to bring driver design expertise in area where we're now relying on third parties in-house. Two, modestly build out our commercial team and front end talent to support our customer sampling program, and B-TRAN commercialization, engaging in additional domestic semiconductor fabrication partner, now that we're engaging with large companies in our customer sampling program, and for general corporate and working capital purposes. Cash and cash equivalents totaled $26.8 million at March 31, 2021. Our debt outstanding remains $0.1 million as of March 31, 2021, and represented a Paycheck Protection Program loan we received last year to temporarily subsidize payroll and facilities costs in the business landscape impacted by the COVID 19 pandemic. Earlier this week, forgiveness of our PPP loan was granted by the SBA. As a result, we no longer have any outstanding debts. As of March 31, we had 5,872,046 shares outstanding and 1,040,248 warrants outstanding. Including 430,937 stock options outstanding, our diluted shares outstanding was 7.3 million shares at March 31. Our balance sheet gives us ample liquidity, particularly given our planned continued modest cash burn to fund multiple years of operations. And we are well capitalized partner for the larger companies that we expect to participate in our customer sampling program. At this time, I'd like to open up the call for questions. Operator?