Yes, so let me talk G&A first, and I'll talk margins. G&A, the biggest driver of the increase is the bonus adjustment. So obviously when it will be year-over-year, we go back to a 100% bonus accrual projection will be hitting plan, and so when you see year-on-year, overall, after securities litigation costs and CEO transition costs, I think we're up about $3 million or so that get within that range. The bonus adjustment is by far the biggest driver of that. We have a little bit higher in terms of equity compensation in that number. And then the balance of salaries and other G&A expenses are roughly flat. So overall, we've done a real good job in terms of managing G&A overall, but again, we'll have bonus adjustment, and a little bit on the equity that will drive the cost up year-over-year. If we have the year that we are targeting at this year, then I'd expect to start leveraging G&A next year, quite honestly as we continue to build sales and not have this seems like annual bonus adjustments that we have to lap into the future. So in terms of margins, what you're seeing now is the wage inflation, which has -- if you look at the past several years, it has become higher and higher for us. One, just from the magnitude of the minimum wage increases here in California, the other one is the ability to manage the compression has gotten tougher, basically managing a difference between your higher pay at labor and restaurant by shift leaders and cooks relative to cashiers and shifts. So we've had to move more than more in line with minimum wage increases. So we haven't had the ability to manage that compression. So you got the wage pressures, and versus the last three years where we had food cost deflation, this year, as you have heard in our opening remarks, we expect to have a little bit inflation in food costs. I don't have that offset. So we've been pretty consistently saying you really need to be probably 3.5% comp growth in order to hold margin flat, maybe even north of that. So that's why you're seeing -- the high-end of the range were basically flat on margins, but if you get lower, you could see some margin degradation if we don't get that kind of comp lift.