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Marketable Securities (Tables) | 3 Months Ended
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Apr. 29, 2023
Investments, Debt and Equity Securities [Abstract] |
Investments in Marketable Securities | The following table summarizes our investments in marketable securities at April 29, 2023, January 28, 2023 and April 30, 2022 (in thousands):
| April 29, 2023
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 39,266 |  |  | $ | 385 |  |  | $ | — |  |  | $ | 39,651 |
Fixed income securities | 10,044 |  |  | — |  |  | — |  |  | 10,044 |
Total marketable securities | $ | 49,310 |  |  | $ | 385 |  |  | $ | — |  |  | $ | 49,695 |
| January 28, 2023
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 29,570 |  |  | $ | 180 |  |  | $ | — |  |  | $ | 29,750 |
Fixed income securities | 10,003 |  |  | — |  |  | — |  |  | 10,003 |
Total marketable securities | $ | 39,573 |  |  | $ | 180 |  |  | $ | — |  |  | $ | 39,753 |
| April 30, 2022
| Cost or Amortized Cost |  | Gross Unrealized Holding Gains |  | Gross Unrealized Holding Losses |  | Estimated Fair Value
Commercial paper | $ | 39,921 |  |  | $ | 19 |  |  | $ | (19) |  |  | $ | 39,921 |
Fixed income securities | 11,076 |  |  | — |  |  | — |  |  | 11,076 |
Total marketable securities | $ | 50,997 |  |  | $ | 19 |  |  | $ | (19) |  |  | $ | 50,997 |
Gain (Loss) on Investments | The following table summarizes our gains on investments for commercial paper (in thousands):
| Thirteen Weeks Ended |  |
| April 29, 2023 |  | April 30, 2022 |  |  |  |
Gains on investments | $ | 172 |  |  | $ | 25 |  |  |  |  |

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