Turning now to operating expenses, Q4 combined R and D and SG and A was $27,500,000 This compares to R and D and SG and A of $23,700,000 in Q3 2023 and $26,200,000 in Q4 last year. R and D in Q4 was $15,400,000 as compared to $11,600,000 in Q3 and $13,700,000 in Q4 last year due to higher mask set costs. Stock compensation charges including operating expenses were $1,700,000 in Q4 compared to $2,100,000 in Q3 $1,500,000 in Q4 last year. Q4 operating loss was $15,900,000 This compares to an operating loss of $9,200,000 in Q3 and operating loss of $10,100,000 in Q4 2022. On a non GAAP basis, Q4 adjusted operating loss was $14,100,000 compared to adjusted operating loss of $7,100,000 in Q3 $8,600,000 in Q4 last year.