pre_text: Stock-based compensation expense is included in the following captions of the consolidated statements of comprehensive income (loss) (in thousands): Stock-based compensation expense is included in the following captions of the consolidated statements of comprehensive income (loss) (in thousands): As of February 28, 2019, there was $25.5 million of unrecognized stock-based compensation cost related to non-vested equity awards, which is expected to be recognized over a weighted-average remaining vesting period of 2.8 years.
table: Year Ended February 28,
table: 2019 2018 2017
table: Cost of revenues $723 $653 $374
table: Research and development 2,061 1,471 1,033
table: Selling and marketing 2,863 2,314 1,655
table: General and administrative 5,382 4,860 4,771
table: $11,029 $9,298 $7,833
question: Analyse this data from a financial earnings document. What was the change in Selling and marketing between 2018 and 2019?