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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Jul. 29, 2023
Jul. 30, 2022
Operating activities    
Net income (loss) $ 21,895 $ (8,389)
Adjustments to reconcile net income (loss) to cash (used in) provided by operating activities:    
Depreciation and amortization 6,951 14,000
Loss from equity method investments 21 500
Amortization of debt issuance costs 214 211
Provision for doubtful accounts (15) 23
Reserve for inventory excess and obsolescence 3,330 220
Other non-cash expense, net 173 153
Non-cash lease expense 2,184 1,590
Loss (gain) on foreign currency transactions 132 (44)
Unrealized loss on available-for-sale equity securities, net 1,013  
Deferred income taxes (427) (381)
Stock-based compensation 3,204 2,217
Loss on disposal of property and equipment 116 485
Amortization of debt securities discount   130
Changes in operating assets and liabilities, net of acquisitions:    
Accounts receivable 8,207 8,053
Unbilled receivables and retentions (1,603) 14,754
Inventories (40,004) (11,927)
Income taxes receivable   442
Prepaid expenses and other assets (4,401) 46
Accounts payable (2,780) 3,323
Other liabilities (15,272) (9,519)
Net cash (used in) provided by operating activities (17,062) 15,887
Investing activities    
Acquisition of property and equipment (3,632) (5,393)
Equity method investments   (2,774)
Redemptions of available-for-sale investments   13,280
Purchases of available-for-sale investments   (1,326)
Net cash (used in) provided by investing activities (3,632) 3,787
Financing activities    
Principal payments of term loan (5,000) (2,500)
Payment of debt issuance costs (9)  
Tax withholding payment related to net settlement of equity awards (1,298) (824)
Other (8) (7)
Net cash used in financing activities (6,315) (3,331)
Effects of currency translation on cash and cash equivalents 21 (391)
Net (decrease) increase in cash, cash equivalents, and restricted cash (26,988) 15,952
Cash, cash equivalents and restricted cash at beginning of period 132,859 77,231
Cash, cash equivalents and restricted cash at end of period 105,871 93,183
Cash paid, net during the period for:    
Income taxes 35  
Interest 1,782 2,169
Non-cash activities    
Unrealized gain on available-for-sale investments, net of deferred tax expense of $0 and $6 for the three months ended July 29, 2023 and July 30, 2022, respectively   (20)
Change in foreign currency translation adjustments (63) (1,064)
Issuances of inventory to property and equipment, ISR in-service assets   3,364
Acquisitions of property and equipment included in accounts payable $ 969 $ 543