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Investments | 9 Months Ended
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Jan. 28, 2023
Investments |
Investments | 3. Investments ​ Investments consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 28, | ​ | April 30, | ​
​ |  | 2023 |  | 2022 |
Short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | ​ | — | ​ | ​ | 19,725 | ​
U.S. government securities | ​ | ​ | — | ​ | ​ | 4,991 | ​
Total short-term investments | ​ | $ | — | ​ | $ | 24,716 | ​
Long-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity securities and warrants | ​ | ​ | 3,302 | ​ | ​ | — | ​
Total long-term available-for-sale securities investments | ​ |  | 3,302 | ​ |  | — | ​
Equity method investments | ​ | ​ | ​ | ​ | ​ | ​ | ​
Investments in limited partnership funds | ​ |  | 16,017 | ​ |  | 15,433 | ​
Total equity method investments | ​ |  | 16,017 | ​ |  | 15,433 | ​
Total long-term investments | ​ | $ | 19,319 | ​ | $ | 15,433 | ​
​ Available-For-Sale Securities ​ Debt Securities ​ As of April 30, 2022, the balance of available-for-sale debt securities consisted of state and local government municipal securities, U.S. government securities and U.S. government agency securities. Interest earned from these investments is recorded in interest expense, net. Realized gains on sales of these investments on the basis of specific identification are recorded in interest expense, net. As of January 28, 2023, the Company held no available-for-sale debt securities. ​ The following table is a summary of the activity related to the available-for-sale debt securities recorded in short-term investments as of April 30, 2022, respectively (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | April 30, 2022 | ​
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair |
​ | ​ | Cost |  | Gains | ​ | Losses |  | Value |
Municipal securities |  | $ | 19,756 | ​ | $ | — | ​ | $ | (31) | ​ | $ | 19,725 | ​
U.S. government securities | ​ |  | 4,995 | ​ | ​ | — | ​ | ​ | (4) | ​ | ​ | 4,991 | ​
Total available-for-sale debt securities |  | $ | 24,751 |  | $ | — | ​ | $ | (35) |  | $ | 24,716 | ​
​ Equity Securities ​ Equity securities and warrants are measured at fair value with net unrealized gains and losses from changes in the fair value recognized in other (expense) income, net. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months |  | Nine Months
​ | ​ | Ended |  | Ended
​ |  | January 28, |  | January 28,
​ | ​ | 2023 |  | 2023
Net loss recognized during the period on equity securities | ​ | $ | (2,726) | ​ | $ | (1,798)
Less: Net loss recognized during the period on equity securities sold during the period | ​ | ​ | — | ​ | ​ | —
Unrealized loss recognized during the period on equity securities still held at the reporting date | ​ | $ | (2,726) | ​ | $ | (1,798)
​

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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