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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2024 | Apr. 30, 2023 | Apr. 30, 2022
Operating activities |  |  |
Net income (loss) | $ 59,666,000 | $ (176,167,000) | $ (4,185,000)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 35,749,000 | 99,999,000 | 60,825,000
Impairment of goodwill |  | 156,017,000 |
Loss (gain) from equity method investments | 1,674,000 | 2,453,000 | (5,889,000)
Loss on deconsolidation of previously controlled subsidiary |  | (189,000) |
Amortization of debt issuance costs | 1,009,000 | 845,000 | 789,000
Provision for doubtful accounts | 4,000 | 99,000 | (6,000)
Reserve for inventory excess and obsolescence | 13,937,000 | 8,136,000 | 2,271,000
Other non-cash expense, net | 1,316,000 | 1,995,000 | 649,000
Non-cash lease expense | 10,400,000 | 8,048,000 | 6,814,000
Loss on foreign currency transactions | 22,000 | 119,000 | 233,000
Unrealized loss (gain) on available-for-sale equity securities, net | 3,945,000 | 132,000 |
Deferred income taxes | (23,290,000) | (18,661,000) | (7,282,000)
Stock-based compensation | 17,069,000 | 10,765,000 | 5,390,000
Loss on disposal of property and equipment | 621,000 | 1,497,000 | 8,277,000
Amortization of debt securities discount |  | 125,000 | 242,000
Changes in operating assets and liabilities, net of acquisitions: |  |  |
Accounts receivable | 19,208,000 | (27,423,000) | 3,084,000
Unbilled receivables and retentions | (92,850,000) | (1,446,000) | (31,883,000)
Inventories | (23,045,000) | (61,846,000) | (29,431,000)
Income taxes receivable |  | 442,000 | (442,000)
Prepaid expenses and other assets | (20,279,000) | (3,821,000) | (4,534,000)
Accounts payable | 12,968,000 | 12,538,000 | (7,044,000)
Other liabilities | (2,832,000) | (2,635,000) | (7,496,000)
Net cash provided by (used in) operating activities | 15,292,000 | 11,400,000 | (9,618,000)
Investing activities |  |  |
Acquisition of property and equipment | (22,983,000) | (14,868,000) | (22,289,000)
Equity method investments | (3,074,000) | (5,778,000) | (6,884,000)
Equity security investments |  | (5,100,000) |
Acquisitions of intangible assets | (1,500,000) |  |
Business acquisitions, net of cash acquired | (24,157,000) | (5,105,000) | (46,150,000)
Proceeds from sale of ownership in equity method investment |  |  | 6,497,000
Proceeds from loan repayment |  |  | 4,345,000
Proceeds from deconsolidation of previously controlled subsidiary, net of cash deconsolidated |  | (635,000) |
Redemptions of available-for-sale investments |  | 26,059,000 | 35,851,000
Purchases of available-for-sale investments |  | (1,326,000) | (23,882,000)
Other |  | (250,000) | 224,000
Net cash (used in) investing activities | (51,714,000) | (7,003,000) | (52,288,000)
Financing activities |  |  |
Principal payments of term loan | (107,000,000) | (55,000,000) | (10,000,000)
Payment of contingent consideration | (2,132,000) |  |
Holdback and retention payments for business acquisition | (500,000) |  | (7,814,000)
Proceeds from shares issued, net of issuance costs | 88,437,000 | 104,649,000 |
Payment of debt issuance costs | (37,000) |  | (293,000)
Tax withholding payment related to net settlement of equity awards | (1,596,000) | (1,065,000) | (1,245,000)
Exercise of stock options | 0 | 2,278,000 | 2,776,000
Other | (24,000) | (28,000) | (31,000)
Net cash (used in) provided by financing activities | (22,852,000) | 50,834,000 | (16,607,000)
Effects of currency translation on cash and cash equivalents | (284,000) | 397,000 | (1,319,000)
Net (decrease) increase in cash, cash equivalents, and restricted cash | (59,558,000) | 55,628,000 | (79,832,000)
Cash, cash equivalents and restricted cash at beginning of period | 132,859,000 | 77,231,000 | 157,063,000
Cash, cash equivalents and restricted cash at end of period | 73,301,000 | 132,859,000 | 77,231,000
Cash paid, net during the period for: |  |  |
Income taxes | 20,438,000 | 2,911,000 | 1,879,000
Interest | 6,823,000 | 10,229,000 | 5,025,000
Non-cash activities |  |  |
Unrealized gain (loss) on available-for-sale investments, net of deferred tax expense of $0, $0 and $8 for the fiscal years ended April 30, 2024, 2023 and 2022, respectively |  | 53,000 | (43,000)
Issuance of common stock for business acquisition | 109,820,000 |  |
Change in foreign currency translation adjustments | (1,140,000) | 2,009,000 | 6,814,000
Issuances of inventory to property and equipment, ISR in-service assets |  | 6,306,000 | 17,481,000
Acquisitions of property and equipment included in accounts payable | $ 986,000 | $ 721,000 | $ 1,117,000

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