Investments (Tables)

12 Months Ended

Apr. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

Investments consist of the following (in thousands): 

	April 30,
	2023		2022
Trading:
U.S. Treasury securities	$	7,305	$	—
Marketable equity securities	16,632		16,826
	$	23,937	$	16,826

Schedule of US Treasury Securities Classified as Trading

The U.S. Treasury securities at April 30, 2023 and 2022 were as follows (in thousands): 

	2023		2022
Due within one year	$	6,819	$	—
Due within two years	486		—
Due within three years	—		—
Due after three years	—		—
	$	7,305	$	—