Table:
|  | Year Ended December 31, |  | % Change |
| --- | --- | --- | --- |
|  | 2019 | 2018 | 2019 |
|  |  | (dollars in thousands) |  |
| Selling, general and administrative | $88,762 | $101,789 | (13)% |
| % of net revenue | 28% | 26% |  |
Paragraphs:
Selling, General and Administrative
Selling, general and administrative expense decreased $13.0 million to $88.8 million for the year ended December 31, 2019, as compared to $101.8 million for the year ended December 31, 2018. The decrease was primarily due to a decrease in intangible asset amortization of $8.9 million as certain assets reached the end of their useful lives, as well as decreases in payroll-related expense of $1.7 million due to lower headcount, professional fees of $1.3 million, outside services of $0.5 million, and travel-related expenses of $0.3 million.
We expect selling, general and administrative expenses to remain relatively flat in the near-term; however, our expenses may increase in the future as we expand our sales and marketing organization to enable market expansion.
Question:
Why is the selling, general and administrative expenses expected to increase in the future?
Answer: as we expand our sales and marketing organization to enable market expansion.