Non-GAAP operating expense in Q4 of $5.7 million was at the top end of our previous guidance range, primarily because of the final quarter 2020 management bonus accrual and sales commission true-up moving slightly upward, as well as higher travel expense as our sales team in Asia has begun to travel again following the COVID shutdown.

Feb 18, 2021 / CFO / receipt, needs a key / David Lyle, CFO | earnings call 2021-02-18 | transcript e820f5ab-bd75-4723-8760-5d11f84c7f6b | chars 10819-11155 | segment 10