The increase was mainly due to the end of sale of certain low margin products, which was offset partially by higher severance costs in this quarter. If we exclude severance of $300,000 pro form a gross margin is 67.7 percent for the 3rd quarter. R and D expenses were $29,300,000 in Q3, which included severance of $3,600,000 and equity award cancellation expense of $9,000,000 If we exclude these two items, pro form a R and D expenses decreased 17.1% year over year to $16,600,000 in Q3, representing 52.5 percent of total revenues in the quarter compared to 57.2% in Q3 last year. Sales and marketing expenses were $6,900,000 in Q3, which included severance of $700,000 If we exclude severance, pro form a sales and marketing expenses decreased 20 point 9% over year to $6,200,000 in Q3, representing 19.6% of total revenues in the quarter compared to 22.2% in Q3 last year. G and A expenses were $9,700,000 in Q3, which included severance of $100,000 and equity award cancellation expense of $2,400,000 If we exclude these two items, pro form a G and A expenses decreased 19.7 percent year over year to $7,300,000 in Q3, representing 23.1% of total revenues in the quarter compared to 25.9% in Q3 last year.