Table:
|  | Year Ended December 31, |  | Change |  |
| --- | --- | --- | --- | --- |
|  | 2018 | 2017 | $ | % |
|  |  | (dollars in thousands) |  |  |
| Other expense, net | $ 4,628 | $ 302 | $ 4,326 | 1432.5% |
| % of revenue | 3% | 0% |  |  |
Paragraphs:
Other Expense, Net
Other expense, net decreased by $4.3 million in 2018 compared to 2017 as a result of an increase in interest expense of $5.7 million related to interest expense due under our convertible senior notes. This increase was offset by an increase of $1.4 million of interest income earned on our short-term investments.
Question:
In which year was Other expense, net less than 1,000 thousands?
Answer: Because locate and analyze other expense in row 4, the answer is: 2017.