Thank you, Craig. Good afternoon everyone. Before I begin my prepared remarks, I'd like to call your attention to our fourth quarter and year end 2019 earnings results issued this morning. You can access a copy of the earnings release on our website ashs.com at Press Releases under the investors tab.For the three months ended December 31, 2019, revenue of $4,786,000 was consistent with revenue in the fourth quarter of 2018 of $4,770,000. Fourth quarter revenue for our proton therapy system installed at Orlando Health in Florida increased 4.7% to $1,486,000, compared to revenue for the fourth quarter of 2018 of $1,419,000.Revenue for the Company's Gamma Knife operations increased 4.1% to $3,230,000 for the fourth quarter of 2019, compared to $3,102,000 for the fourth quarter of 2018. The increase is due to increased volumes at existing sites offset by a decline in average reimbursement at the Company's retail sites.Gross margin for the fourth quarter of 2019 decreased to $1,441,000 or 30.1% of revenues, compared to gross margin of $1,565,000 or 32.8% of revenue for the fourth quarter of 2018. The decrease is due to higher depreciation on the Gamma Knife and IGRT equipment at a customer location for contracts whose contracts are set to expire in the second quarter of 2020.Net income for the fourth quarter of 2019 was $193,000, or $0.03 per share. This compares to net income for the fourth quarter of 2018 of $178,000, or $0.03 per share and $165,000 or $0.3 per share in the third quarter of 2019.Adjusted EBITDA, a non-GAAP financial measure was $2,056,000 for the fourth quarter of 2019, compared to $2,346,000 for the fourth quarter of 2018. On the balance sheet at December 31, 2019, cash, cash equivalents and restricted cash was $1,779,000, compared to 1,792,000 at December 31 2018.Shareholders' equity at December 31, 2019 was $31,811,000 or $5.47 per outstanding share. This compares to shareholders equity at December 31, 2018 of $31,040,000 or $5.43 for outstanding share. Issued and outstanding shares totaled of $5,817,000 at December 31, 2019 compared to $5,714,000 at December 31 2018.This concludes the formal part of our presentation. Daryl, we'd like to now turn the call back over to you for questions.