[DanielRibeiro]

That's a great question. They expanded it a bit on their "SUMMARY CONSOLIDATED FINANCIAL DATA AND OTHER DATA" section.

Their operating expenses are divided in 3: Research and development, Sales and marketing and General and administrative.

They also describe a bit the evolution of these under the Risk Section, beneath "We have a history of net losses, we anticipate increasing operating expenses in the future, and we may not be able to achieve and, if achieved, maintain profitability."