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Investments in Affiliates (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jul. 30, 2022	Jul. 31, 2021	Apr. 30, 2022
Schedule of Investments [Line Items]
Equity method investments	$ 16,026		$ 16,916
Equity in loss of affiliate	890	$ 746
Accounts payable	52
Long-term Receivables, Less Current Maturities
Schedule of Investments [Line Items]
Purchase of convertible notes	1,081
Product Design and Development
Schedule of Investments [Line Items]
Related party transaction, amounts of transaction	$ 0	$ 470