Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jan. 27, 2024	Jan. 28, 2023
Cash flows from operating activities:
Net income (loss)	$ (17,892)	$ (610)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	10,085	6,533
Share-based compensation	24,444	15,606
Warrant contra revenue	1,823	895
Write-downs for excess and obsolete inventory	667	3,087
Impairment of assets	0	2,407
Changes in operating assets and liabilities:
Accounts receivable	4,781	(13,644)
Inventories	13,849	(26,065)
Contract assets	(8,464)	(9,185)
Prepaid and other current assets	(2,721)	1,642
Other non-current assets	(7,398)	(5,598)
Accounts payable	5,281	11,703
Accrued expenses, compensation and other liabilities	3,540	(1,850)
Deferred revenue	585	2,303
Net cash provided by (used in) operating activities	28,580	(12,776)
Cash flows from investing activities:
Purchases of property and equipment	(12,457)	(17,815)
Maturities of short-term investments	169,754	0
Purchases of short-term investments	(373,587)	(109,228)
Net cash used in investing activities	(216,290)	(127,043)
Cash flows from financing activities:
Proceeds from issuance of ordinary share in connection with public offering, net of underwriter discounts and offering costs	173,636	0
Payments on technology license obligations	(3,052)	(308)
Proceeds from employee share incentive plans, net of tax withholding related to vesting of RSUs	4,685	4,595
Net cash provided by financing activities	175,269	4,287
Effect of exchange rate changes on cash	(69)	(7)
Net increase (decrease) in cash and cash equivalents	(12,510)	(135,539)
Cash and cash equivalents at beginning of the period	108,583	259,322
Cash and cash equivalents at end of the period	96,073	123,783
Supplemental cash flow information:
Purchases of property and equipment included in accounts payable, accrued expenses and other liabilities	$ 8,767	$ 10,789