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Accounts Receivables, Net (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Apr. 29, 2023	Apr. 30, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, allowance for doubtful account, net	$ 4,182	$ 2,754
Accounts receivable	109,979	101,099
Financing receivable	1,473	4,288
Retainage on construction-type contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	1,416	1,834
Financing receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Long-term receivables	$ 1,512	$ 4,364
Financing receivable | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivables, annual interest rates	4.50%
Financing receivable | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contract receivables, annual interest rates	9.00%

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The interest rate of contract and leases receivable.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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