The following table details the fair value measurements of the Company's investments as of April 29, 2017 and January 28, 2017 (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | Level 1 | | Level 2 | | Level 3 | | April 29, 2017 | | January 28, 2017 | | April 29, 2017 | | January 28, 2017 | | April 29, 2017 | | January 28, 2017 | Cash equivalents(1) | $ | 904 |
| | $ | — |
| | $ | 22,198 |
| | $ | — |
| | $ | — |
| | $ | — |
| Short-term investments: | | | | | | | | | | | | Municipal securities | — |
| | — |
| | 4,533 |
| | — |
| | — |
| | — |
| Commercial paper | — |
| | — |
| | 3,491 |
| | — |
| | — |
| | — |
| U.S. corporate debt securities | — |
| | — |
| | 1,465 |
| | — |
| | — |
| | — |
| Certificate of deposit | — |
| | — |
| | — |
| | 30,152 |
| | — |
| | — |
| Long-term investments: | | | | | | | | | | | | U.S. corporate debt securities | — |
| | — |
| | 7,282 |
| | — |
| | — |
| | — |
| Non-U.S. corporate debt securities | — |
| | — |
| | 6,144 |
| | — |
| | — |
| | — |
| Municipal securities | — |
| | — |
| | 2,079 |
| | — |
| | — |
| | — |
| U.S. treasury securities | 2,014 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | | | | | | | | | | | (1) Cash equivalents include a money market fund, commercial paper and municipal securities that have a maturity of three months or less at the date of purchase. Due to their short maturity, the Company believes the carrying value approximates fair value. |
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