| Apr 30,
2012 | Apr 30,
2013 | Apr 30,
2014 | Apr 30,
2015 | Apr 30,
2016 | Apr 30,
2017 | Apr 30,
2018 | Apr 30,
2019 | Apr 30,
2020 | Apr 30,
2021 | Apr 30,
2022 | Apr 30,
2023 | Apr 30,
2024 |
|---|
| Net income (loss) | - | - | - | - | - | 12 | 20 | 47 | 41 | 23 | -4 | -176 | 60 |
|---|
| Depreciation and amortization | 9 | 11 | 9 | 8 | 6 | 7 | 6 | 8 | 10 | 19 | 61 | 100 | 36 |
|---|
| Impairment of goodwill | - | - | - | - | - | - | - | - | - | - | - | 156 | - |
|---|
| Loss (gain) from equity method investments | - | - | - | - | - | - | - | - | - | - | 6 | -2 | 2 |
|---|
| Loss on deconsolidation of previously controlled subsidiary | - | - | - | - | - | - | - | - | - | - | - | -0 | - |
|---|
| Amortization of debt issuance costs | - | - | - | - | - | - | - | - | - | 0 | 1 | 1 | 1 |
|---|
| Provision for doubtful accounts | 0 | 0 | -0 | -0 | -0 | 0 | 1 | -0 | 0 | -0 | -0 | 0 | 0 |
|---|
| Inventory Write-down | - | - | - | - | - | - | - | - | - | - | - | 8 | 14 |
|---|
| Other non-cash expense, net | - | - | - | - | - | - | - | - | 1 | 0 | -1 | -2 | -1 |
|---|
| Non-cash lease expense | - | - | - | - | - | - | - | - | -5 | -5 | -7 | -8 | -10 |
|---|
| Loss on foreign currency transactions | - | - | -0 | -1 | -0 | -0 | 0 | -0 | -0 | -0 | -0 | -0 | -0 |
|---|
| Unrealized loss (gain) on available-for-sale equity securities, net | - | - | - | - | - | - | - | - | - | - | - | -0 | -4 |
|---|
| Deferred income taxes | - | - | - | - | - | - | - | - | - | - | -7 | -19 | -23 |
|---|
| Stock-based compensation | 3 | 3 | 4 | 4 | 5 | 4 | 5 | 7 | 6 | 7 | 5 | 11 | 17 |
|---|
| Loss on disposal of property and equipment | 0 | -0 | - | -4 | 0 | -0 | -0 | -0 | 0 | -0 | -8 | -1 | -1 |
|---|
| Amortization of debt securities discount | - | - | - | -5 | -4 | -2 | -1 | 2 | 1 | -0 | -0 | -0 | - |
|---|
| Accounts receivable | 12 | -36 | 12 | 2 | 22 | 19 | -11 | -26 | 43 | -17 | -3 | 27 | -19 |
|---|
| Unbilled receivables and retentions | 5 | -16 | -0 | 6 | 2 | -5 | -1 | 36 | 23 | -8 | 32 | 1 | 93 |
|---|
| Inventories | 5 | 19 | -12 | -11 | -2 | 23 | -2 | 17 | -9 | 5 | 27 | 62 | 23 |
|---|
| Income taxes receivable | - | 12 | -5 | -7 | - | - | - | 1 | -1 | - | 0 | -0 | - |
|---|
| Prepaid expenses and other assets | 2 | 0 | -0 | 0 | -1 | 1 | -0 | 2 | -1 | 6 | 5 | 4 | 20 |
|---|
| Accounts payable | -11 | -4 | -2 | 5 | -3 | 3 | 6 | -7 | 3 | 3 | -7 | 13 | 13 |
|---|
| Other liabilities | - | - | - | - | 2 | -1 | 8 | -4 | 8 | 6 | -7 | -3 | -3 |
|---|
| Net cash provided by (used in) operating activities | - | - | - | - | - | - | - | - | - | - | -10 | 11 | 15 |
|---|
| Acquisition of property and equipment | 15 | 12 | 7 | 5 | 7 | 10 | 10 | 9 | 11 | 11 | 22 | 15 | 23 |
|---|
| Equity method investments | - | - | - | 0 | 0 | - | 3 | 8 | 14 | 3 | 7 | 6 | 3 |
|---|
| Equity security investments | - | - | - | - | - | - | - | - | - | - | - | 5 | - |
|---|
| Acquisitions of intangible assets | - | 1 | 1 | 0 | - | - | - | - | - | - | - | - | 2 |
|---|
| Business acquisitions, net of cash acquired | - | - | - | - | - | - | - | - | 19 | 386 | 46 | 5 | 24 |
|---|
| Proceeds from Sale of Equity Method Investments | - | - | - | - | - | - | - | - | - | - | 6 | - | - |
|---|
| Proceeds from loan repayment | - | - | - | - | - | - | - | - | - | - | 4 | - | - |
|---|
| Proceeds from deconsolidation of previously controlled subsidiary, net of cash deconsolidated | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
|---|
| Redemptions of available-for-sale investments | - | - | - | - | - | - | - | - | 201 | 146 | 36 | 26 | - |
|---|
| Purchases of available-for-sale investments | - | - | - | - | - | - | - | - | 107 | 126 | 24 | 1 | - |
|---|
| Other | - | - | - | - | - | - | - | - | - | - | - | 0 | - |
|---|
| Net cash (used in) investing activities | - | - | - | - | - | - | - | - | - | - | -52 | -7 | -52 |
|---|
| Principal payments of term loan | - | - | - | - | - | - | - | - | - | - | -10 | -55 | -107 |
|---|
| Payment of contingent consideration | - | - | - | - | - | - | - | - | 1 | - | - | - | 2 |
|---|
| Holdback and retention payments for business acquisition | - | - | - | - | - | - | - | - | - | 1 | 8 | - | 1 |
|---|
| Proceeds from Issuance of Common Stock | - | - | - | - | - | - | - | - | - | - | - | 105 | 88 |
|---|
| Payment of debt issuance costs | - | - | - | - | - | - | - | - | - | 4 | 0 | - | 0 |
|---|
| Tax withholding payment related to net settlement of equity awards | - | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 1 | 2 |
|---|
| Exercise of stock options | 1 | 0 | 7 | 1 | 1 | 4 | 3 | 0 | 0 | 2 | 3 | 2 | - |
|---|
| Other | - | - | - | - | - | - | - | - | - | - | -0 | -0 | -0 |
|---|
| Net cash (used in) provided by financing activities | - | - | - | - | - | - | 2 | -1 | -2 | 194 | -17 | 51 | -23 |
|---|
| Effect of Exchange Rate on Cash and Cash Equivalents | - | - | - | - | - | - | - | - | - | - | - | 0 | -0 |
|---|
| Net (decrease) increase in cash, cash equivalents, and restricted cash | - | - | - | - | - | - | - | 29 | 82 | -98 | -80 | 56 | -60 |
|---|
| Income taxes | 13 | 15 | 3 | 1 | 2 | 2 | 2 | 7 | 1 | 2 | 2 | 3 | 20 |
|---|
| Interest | - | - | - | - | - | - | - | - | - | - | 5 | 10 | 7 |
|---|
| 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 | - | - | - | - | - | - | - | -0 | -0 | 0 | 0 | -0 | - |
|---|
| Stock Issued | - | - | - | - | - | - | - | - | - | 72 | - | - | 110 |
|---|
| Change in foreign currency translation adjustments | - | - | - | - | - | - | 0 | -0 | 0 | 0 | -7 | 2 | -1 |
|---|
| Issuances of Inventory To Property And Equipment | - | - | - | - | - | - | - | - | - | 1 | 17 | 6 | - |
|---|
| Contribution of Property | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
|---|