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Stock-based compensation (Tables) | 9 Months Ended
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Oct. 28, 2023
Stock-based compensation |
Schedule of weighted average assumptions to determine grant date fair value of employee stock options | ​
​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | ​
​ | ​ | 39 Weeks Ended
​ | ​ | October 28, | ​ | October 29,
​ |  | 2023 |  | 2022
Volatility rate |  | 45.0% | ​ | 49.0%
Average risk-free interest rate |  | 3.8% | ​ | 2.4%
Average expected life (in years) |  | 3.4 |  | 3.4
Dividend yield |  | — |  | —

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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