R and D expense, net of capitalized R and D for Q4 2023 was $3,800,000 compared to $3,000,000 in Q4 of 2022 and relatively flat compared to Q3 2023. Total operating expense for the full year was $36,700,000 50 percent higher than in 2022, driven primarily by a 62% growth in sales and marketing expense to $13,800,000 versus $8,500,000 for 2022, a 43% growth in R and D expense, net of capitalized R and D to $15,800,000 for the full year compared to $11,000,000 for all of 2022. We saw growth in OpEx come down every quarter in 2023 and plan to maintain a more measured pace of OpEx growth throughout 2024. We ended the quarter and the year with total annual recurring revenue ARR of $37,400,000 up 55% from the end of 2022 when it was $24,200,000 Virtually all of this ARR is now coming from SaaS license fees, which grew 57% to $37,300,000 from $23,700,000 at December 31, 2022. The difference between total ARR and SaaS ARR comes from maintenance fees, which were $100,000 at the end of 2023 compared to $500,000 at the close of 2022, with all but one significant customer having transferred to SaaS.