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Revenue - Contract Assets and Liabilities (Details) - USD ($)	12 Months Ended
	Apr. 30, 2022	May 01, 2021
Contract With Customer Asset And Liability [Abstract]
Unbilled receivables	$ 400,000	$ 600,000
Unbilled receivables recorded into accounts receivable	(600,000)
Impairment of contract assets	0
Deferred revenue	200,000	$ 300,000
Deferred revenue recorded into revenue	$ (100,000)

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- References

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- Definition

Amount of expense (reversal of expense) for expected credit loss on right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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