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Investments (Tables)

12 Months Ended

Apr. 30, 2024

Investments

Schedule of investments

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​	​	​	​	​	​	​
​	​	April 30,
​		2024			2023
Long-term investments:	​	​	​	​	​	​
Available-for-sale securities:	​	​	​	​	​	​
Equity securities and warrants	​	​	1,027	​	​	4,969
Total long-term available-for-sale securities investments	​		1,027	​		4,969
Equity method investments	​	​	​	​	​	​
Investments in limited partnership funds	​		19,933	​		18,644
Total equity method investments	​		19,933	​		18,644
Total long-term investments	​	$	20,960	​	$	23,613

Schedule of amortized cost, gross unrealized gains, gross unrealized losses, and estimated fair value of available-for-sale investments

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​	​	​	​	​	​	​
​	​	Year Ended		​	Year Ended
​	​	April 30, 2024		​	April 30, 2023
Net losses recognized during the period on equity securities	​	$	(3,945)	​	$	(132)
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	​	$	(3,945)	​	$	(132)

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