Revenue - Contract Assets and Liabilities (Details) - USD ($)	12 Months Ended
	Apr. 29, 2023	Apr. 30, 2022
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Unbilled receivables	$ 500,000	$ 400,000
Unbilled receivables recorded into accounts receivable	(400,000)
Impairment of contract assets	0	0
Deferred revenue	100,000	$ 200,000
Deferred revenue recorded into revenue	$ (100,000)