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Financial Statement Details (Tables) | 9 Months Ended
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Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of Inventories | Inventories, net, consist of the following (in thousands):
| September 30, 2018 |  | December 31, 2017
Finished goods | $ | 8,820 |  |  | $ | 14,331 |
Raw materials and components | 4,927 |  |  | 6,072 |
Total inventories, net | $ | 13,747 |  |  | $ | 20,403 |
Summary of Accrued Expenses | Accrued expenses and other current liabilities consist of the following (in thousands):
| September 30, 2018 |  | December 31, 2017
Royalties | $ | 1,564 |  |  | $ | 1,558 |
Payroll and related expenses | 2,499 |  |  | 2,870 |
Professional fees | 727 |  |  | 1,789 |
Accrued interest | 1,685 |  |  | 239 |
Deferred revenue | 2,464 |  |  | 1,823 |
Acquisition-related liabilities | 1,000 |  |  | 13,186 |
Other | 6,468 |  |  | 6,093 |
Total accrued expenses and other current liabilities | $ | 16,407 |  |  | $ | 27,558 |
Restrictions on Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows (in thousands):
| September 30, 2018 |  | December 31, 2017 |  | September 30, 2017 |  | December 31, 2016
Cash and cash equivalents | $ | 31,547 |  |  | $ | 21,198 |  |  | $ | 19,587 |  |  | $ | 9,894 |
Restricted cash | 61 |  |  | 61 |  |  | 411 |  |  | — |
Total cash, cash equivalents and restricted cash | $ | 31,608 |  |  | $ | 21,259 |  |  | $ | 19,998 |  |  | $ | 9,894 |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows (in thousands):
| September 30, 2018 |  | December 31, 2017 |  | September 30, 2017 |  | December 31, 2016
Cash and cash equivalents | $ | 31,547 |  |  | $ | 21,198 |  |  | $ | 19,587 |  |  | $ | 9,894 |
Restricted cash | 61 |  |  | 61 |  |  | 411 |  |  | — |
Total cash, cash equivalents and restricted cash | $ | 31,608 |  |  | $ | 21,259 |  |  | $ | 19,998 |  |  | $ | 9,894 |

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