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Investments | 3 Months Ended
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Apr. 28, 2019
Investments [Abstract] |
Investments | Investments The following table summarizes the Company’s available-for-sale securities:
| April 28, 2019 |  | January 27, 2019
(in thousands) | Market Value |  | Adjusted Cost |  | Gross Unrealized Gain |  | Market Value |  | Adjusted Cost |  | Gross Unrealized Gain
Convertible debt | $ | 3,605 |  |  | $ | 3,605 |  |  | $ | — |  |  | $ | 3,105 |  |  | $ | 3,105 |  |  | $ | — |
Total other assets | $ | 3,605 |  |  | $ | 3,605 |  |  | $ | — |  |  | $ | 3,105 |  |  | $ | 3,105 |  |  | $ | — |
The following table summarizes the maturities of the Company’s available-for-sale securities:
| April 28, 2019 |  | January 27, 2019
(in thousands) | Market Value |  | Adjusted Cost |  | Market Value |  | Adjusted Cost
Within 1 year | $ | 3,605 |  |  | $ | 3,605 |  |  | $ | 3,105 |  |  | $ | 3,105 |
After 1 year through 5 years | — |  |  | — |  |  | — |  |  | — |
Total investments | $ | 3,605 |  |  | $ | 3,605 |  |  | $ | 3,105 |  |  | $ | 3,105 |
The Company's available-for-sales securities consisted of investments in convertible debt instruments issued by privately-held companies and is included in "Other current assets" in the Balance Sheets.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=4738149 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2289146 + Details
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